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1 











MINING PRESS 












VOLUME 109 

JULY TO DECEMBER 

1914 












Mining Press 

420 MARKET STREET SAN FRANCISCO, CALIFORNIA 













4 

1 
I 
8 



•0 
59 
>4 
10 
10 
)2 
19 



69 

77 
09 
8R 
01 

39 

sc; 

25 
19 



INDEX 






.1.1 ii. 

■ « Prraeni condition! .it Ploche, 



Atr: 

p i lo r 

California 



Abru 

■ii fatalities, v s coal mini 

I'r- v . i. tt. .11 v compensation IV. ink II. Tr. . 

mataj mil 

\ llaaka 

California Commission report 

\MMriiiiii. hoisting 

\ n ta. Simple mlna 

t 

Adsorption, phenomena <>f 

:«mpnis and altuatlona Editorial.... 

ithwest. export 

Agriculture. Department of and Agricultural G 

Ings 

Editorial 

Ahmo.k Copper Mining Co. Kenrsnrg,-. Michigan ...2.12. 

Air compr. - Driven porlublo 

Compressor, rotary 

Compressor. Variable volume 

Depletion In mines 

In mines, nnd gasoline locomotives 

AJax GoM Mining Co.. Victor. Colorado 

AJo ores. Leaching experiments on- I. II. Ill 

Stuart Croaadale. .. .209, 862, 

Akoko mine. West Africa B14, 

Alabama, coal production 

Coke production 80, 

Iron, pig. production 

Metal production 

Aladdin Mining Co. and Chambers-Ferland MlnlnK Cm,. 

Ontario 

Alaska, accidents 

Rarlte deposits near Wrangell . .Ernest F. Burehard .... 

Bethel district 

Broad Pass district reported discovery and Stephen 

Birch 

Ditto Editorial 

Castle Islands barlte occurrence 

Chicago Bench suit 

Chlsana district 156. 227. 229. 348. 500. 501. 

Chlsana district map 

Chlsana gold yield 

Circle district mining 

Coal-bearing area 

Coalfields map 

Coal lands leasing Editorial.... 

Coal lands leasing bill In Senate 498. 

' "..r.lova district 

dova district, map 

Coal lands leasing bill 

Dogmoblles Editorial .... 

Dredging 

Eagle district mining 

Fairbanks district gold production 

Fairbanks district, placer mining E. E. Hurja. . . . 

Fairbanks district production 

Glaciers 

Gold production . . . . > 

Government railways 

Hydraullcklng 

Idltarod district gold production 

Idltarod-Ruby district 

Innoko district gold production 

Iskoot River district 

Juneau district history and outlook 

Ketchikan district 

Ketchikan district and war 

Ketchikan district. Mining revival In the. .EE.HurJa. . . . 

Klondike district dredslng 

Koyukuk mining district E. E. Hurja. . . . 

Kuskokwlm River district 

Map of 

Mineral production 

"Mineral Resources of Alaska' 

Mining In the Far North Emll Edward Hurja 

10. 69, 103. 152. 225. 261. 568, 769. 848, 887. 

N'flchlna district 

Nlzlna district 226. 

Nome beaches 

Nome business 

Placer act decision Editorial.... 

Petroleum production 

Railroad 

Railways surveys report 

Ruby District gold production 

Uuhy-Tnnnko-Iditarod gold districts 

Seventymlle District mining 

Seward and the Kenai peninsula E. E. Hurja. . . . 

Seward Peninsula and its mining problems 

F. Lynwood Garrison 



'•is 
691 

111 

s?s 

CO 

4 51 
787 

:?:• 

191 

ST.' 
.-.,',.: 
C24 
124 
;:■:• 
608 
•'is 

291 
856 
68 l 
684 

631 

38 

152 
820 
87] 
160 

.497 

16 9 

::is 
422 
617 
28 
698 
ss: 
308 
312 
277 
571 
225 
4 99 
615 
239 
720 
sss 
422 
965 
961 



590 
156 
886 
656 
• 656 
656 

69 
152 
734 
617 

10 
ir. i 
416 
6 56 
122 
820 
776 

965 
657 
500 
910 
1006 
1 
935 
34 8 
734 
656 
534 
SRS 
341 

907 



• ward Peninsula , 
sii.r,,, k Iron deposit 
Tanana River distrli I 

Tin ilepi, nllH , . 

Tolov ma dlatrlol cold 
V. H i woi k 

Valdai ,Hi,i Prli William Bound 

,, , Emll Ed« i.i ii 

Willow Creek district, Cyuldlng tailing 

W i. hopper Creek district 

w rangell mining district 

Yukon rlvor 

Masks Consolidated Copper Co 

Alaska Crow >"i,-.k Mining Co 

Alaska Bbnei Gold Iflnei Co, 

And Consolidated California-Nevada Co 

Alaska Qastlneau Mining Co 

I •• « elopmenU "f tin B. B. iiurjn , . . .' 

Perseveranc« mine concrete head*frsme ...... 

i". T Jscki 
Gold Mines Co 81 

Compan) report 

Developments of tin- irja. .'.'. 

Sheep ' !reeh tunnel 

Uaeka Juneau Qold Mining Co 

Alaska Mexican Gold Mining Co. i 

Alaska on & Refining Co 

Alaska Syndicate, Bonanza mln.- 

Jumbo mill,- 

Alaska Treadwell Gold Mining Co. ..162, 193, 

684, '. 

Accident 

Cyanide plant. Concentrate treatment costs 

W. P I. 
Alaska United Copper Exploration Co. ..193. 

Alaska Venture Syndicate, i>t d ii. 

Alboline and petroleum production 

Mexo nickel mine. Ontario 504, 

Algoma Steel Corporation 

Alice Gold & Sliver Mining Co. v. Anaconda Copper Min- 
ing Co 

Alkalinity estimations 

Allen. A. W Milling In cyanide 

Ditto Northwestern Australia and Its mineral 

resources 

I'ltto Solution control In cyanldatlon . . . . 

Ditto Titration results In cyanldatlon . . 

Alliance Mining Co., Republic, Washington, and Anaconda 

Gold Mining & Reduction Co 

Allls-Chalmers Mfg. Co.. Little Wonder battery stem guides 

Allouez Mining Co., Allouez. Michigan 232. 

Alloy, antimony In 

(.old and silver 

Silver-copper v 

I*. S. production 

Van Gundy 

Alps Mining Co., Ploche. Nevada 

Alsace-Lorraine, Germany, mining 

Alta Consolidated Mining Co.. Alia, Utah 

Alta Tunnel & Transportation Co 

Aluminum, alloy for silver 

Prices 199. 3SS. 641, Tin, 

Relative natural and commercial scarcity of the metals 

Edwin C. Eckel. . . . 

U. S. production 

Amalgamated Copper Co.. Montana 

Amalgamated Ploche Mines & Smelters Corporation. Ploche, 

Nevada 4 62. 

Amalgamated Zinc (De Bavay's), Ltd.. Broken Hill. New 

South Wales, company report 724. 

Amalgamation, Rhodesia . 

Si lver ores 

South Dakota mills 



Amber. . 

Germany, East Prussia production . ^. . 

America. Production of radium Charles H. Viol.... 

American dredges for foreign countries ....Editorial ... . 
American Association of State Geologists ...Editorial.... 

American Rrass Co. 

American Committee, The Editorial 

American Cvanamid Co 

American Exploration Co.. Park City, Utah 233. 312. 

American Flag mines, Utah 233. 312. 

American Girl mine. Arizona 

American Gold-Copper Mining Co.. New Mexico 

\merlcan Institute of Chemical Engineers. Philadelphia 

and George Otis Smith.... 

American Institute of Mining Engineers and Congress 

Editorial. . . . 

Pittsburgh meeting. Bureau of mines experimental mime 

Pittsburgh meeting Editorial .... 

Pltto Editorial correspondence.... 

Salt Lake Cltv meeting 

Ditto Editorial. . . .125 

San Francisco section Editorial .... 

American Locomotive Co. notes taken up ....Editorial.... 
American Meerschaum & Pipe Corporation, New Mexico . 



946 

.'HI 

973 
108 

•8 

103 
694 

227 

198 
820 



ill 7 
693 
977 
421 

27 
188 

321 

:..'7 

2 17 

896 

:,si 
874 
846 
188 
188 
1H2 
22 
485 
451 
537 
895 
415 
781 

182 
861 
652 

483 

1013 
188 
300 
924 
924 
924 
443 
432 
319 
420 
669 
854 
1010 
1010 
892 
819 

906 

169 

877 
509 
588 
301 
239 
5«6 
125 
819 



176461 



MINING PRESS 



Vol. inn 



Page. 

American Mining Co.. California 423 

Amerl. ;in Mining Congress, P nix mewling r. 7 1 . B69 

Dltti Editorial 58:.. 788, 

President Wilson's letter 906 

American Museum of Safety, Safety and Sanitation c<> n - 

New York 1005 

Amere 'nine. Colorado 

Am,T um Society Editorial.... 86 

Am. Tie:, ii Rullle Co., Roseland, Virginia Editorial.... 983 

an Sm< lling & Refining Co 272, 536 

I'll'" Editorial. . . 

An, i Riverside Dairy & Stock Farm 

Chihuahua plant 77. 774 

"'h-nuahua smelter Editorial.... 126 

< 'ompany report 497, 581 

i topper prices 662 

Lead production 889 

Mexican plants 419. 458 

v Federal Mining & Smelting Co.. . Sidney Norman ... . 339 

Amerl, an Turquoise Co., New Mexico 819 

American Zln. bead & Smelting Co 68 

HIllSbOTO, Illinois plant E. H. Leslie. . . . 280 

Amur. Held mining on the W, H. Shockley. . . . 249 

Anaconda Copper Mining Co.. Butte. Montana. 30. 110. 121. 

424. 461. 503. 580. 7S1. 852, 931. 934. 975. 978 

I""'' Editorial 203 

And Butte & Duluth loos 

And International Smelting & Kenning Co 

Barbed wire defense Editorial.... B29 

notation Editorial 829 

Abor conditions Editorial.... 318 

Labor union trouble Editorial.... 360 

Mountain View mine fire 351. 384 

Slime concentrator 238 

V. Alice Gold & Silver Mining Co 27 

Anaconda Gold Mining Co., Roubalx, South Dakota 1005 

Anchor Tin Mining Co., Tasmania 65 

Andrada Mines. Ltd.. Portuguese East Africa. Handling 

I'oulders L. C. de la Marllere. . 

Anglo-Westphallan Kent Coalfield. Ltd 

Antelope Springs Mining Co.. Nevada 

Anthracite culm 

Antimony Editorial. . ! 

Alloys 

And war '. .'.369*, 

Canada, New Brunswick 

Marketed by brand Editorial... 

N.-w Zealand production 

Prices 35, 199. 388. 511. 704, 

Sulphide ores, process for treating 

f ice 

U. S. production 

Uses \ 

Antelope <;->l,l Mine. Ltd.. Rhodesia 

Antelope Spring Mining Co.. Humboldt, Nevada 

Anyox mine. Granby Consolidated 

Apex r r i . . Gauf, Rand 

Application of Notation to gold ores John Bevan.... 

Of Jigs to gold dredging James YV. Nelll 

Ditto Editorial 

Argnll. Phillip . ...Slderlte and sulphides In Leadvllle ore 
II 

Ditto. , , .Slderlte and sulphides In Leadville ore deposits 

— a correction 

Argentina Imports and exports 

Mineral exports 

Mineral resources 

Mining In ' 

Rosarlo district, wolfram exports , 

Trade entension to Editorial.... 

Argo Mining, Drainage, Transportation & Tunnel Co.. 

Springs. Colorado, mill practice 

Argonaut Mining Co., Jackson, California 

v. Kennedy Entension Gold Mining Co., decision ....28. 

Arizonia, Aj ipper mining district 

'liamond-drllllng tests 

Camp revivals 

Cedar district 

Finnabar discovery 

Employment of foreigners ....'..!..! 

Gila county division proposed ., 

ind Gulch mining district 

Juniper Flats gold discovery 

Map ' _ 

Mineral production '.'.'.'.'..'..'.'. 

OUnty mining districts 

nix, American Mining Congress ..574. 868 

Ditto Editorial 585. 788. 

Phoenix, first-aid contest 

Arizona Commercial Co.. Globe, Arizona 114 

Arizona Copper Co.. Ltd.. Morencl, Arizona 121. 313 

„ , 348. 422, 530. 657, 856, 

Smelter costs 

Tax suit 

Arizona Copper-Gold Mining Co.. Arizona ..".'!.' 

Arkansas, - ion 

Miner;:! proline! ion ..."."!! 



Bstlmatlng Basil G, i 

IS for treating 

White, r. s production and consumption 562 661 

Aril fie i .ii respiration 

As war looks In London T A Rlckard"" 

320. 362. 391. 131. 472. 517. 

Asbestos. California production 

i mine West Afrloa 217 si V 

Aslii" I Co.. Japan, dust chambers at smelter .... 
Asphalt. Alsace-Lorraine production 

F. s. production and consumption 

Assay outfit. Portable Theo A Flack 

Platinum Frederick P. Dewey 

Assaying and sampling Cobalt ores 

Assessment suspension hill, mining 

Work exemption of mines 



7«J 

925 
975 
768 
7 If, 
846 
732 
970 
743 
919 
899 
1 18 
3 611 
861 
847 
959 
576 
015 
73 
413 
839 
903 



I is 
792 
918 
794 
17 
848 
829 

833 
157 

61 
383 
415 
191 
574 
156 
816 
618 

74 
193 
617 

74 
855 
906 
903 
855 
229 

1006 
223 
734 

1006 
80 
664 
822 
(12 
149 
64 8 
765 

868 

496 
13 
451 
664 
491 
20 
605 
652 



Page. 

Assets Realization 6x 

Realizing Mines Corporation, Los Angeles 830 

Associated Gold Mines of Western Australia. Ltd., Kal- 
goorlle. Western Australia, and North Thomi 

mine. Ontario 819 

Company report 315 

Associated Northern Blocks. Western Australia. Ltd.. Vic- 
torious mine, Ora Banda 697 

Atlanta Mines Co.. Goldfield, Nevada 76 

\tlns Mining & Milling Co.. Sneffles. Colorado 82- 

Atolla Mining F,,„ California sjt 

Atomic weights for 1915 375 

Attempts at d<toiestlc tin production Editorial.... 790 

Augers, pneumatic 378 

Aurella Crown mine. Washington , 

Aurora Consolidated Mines Co.. Aurora, Nevada 158, T7>". 

\n,l Gol.llleld Consolidated Mining Co 30 

New mill 57. "462 

Austin, Arthur, death of 78 

Austin. b. S Smelting costs and prices for 

silver-lead ores 170 

Australasia, explosives Imports 886 

Federated Engine-Drivers' and Firemen's Association.. 876 

War effects In Editorial.... 471 

Australia, bismuth production 590 

Copper production 120 

73 
693 
317 
15 
471 
513 
73 
321 



Electric work 

Government coal mines 

Grinding pans Editorial 

Jam and the Malay tin Industry 

Mineral production value Editorial 

Mining conditions .. Editorial 

Molybdenite 

Northwestern, and Its mineral resources. A. W. Allen 

Tin deposits map 651 

Zinc ores and Joplln district Editorial .... 625 

Australian tin mine, Tasmania 65 

Australian Institute of Mining Engineers, Melbourne meet- 
ing 73 

Austria. Ichthyol production 447 

Austria-Hungary copper production 120 

Smelters 354 

South American trade 792 

Auto reduction in the precipitation of metallic gold 

Victor Lenher.... 411 

Trucks for ore transport 508 

Automatic rope lubricator 980 

Autotractlon drill rigs 84. 328 



Babllonla Gold Mines. Ltd.. company report 

Bachelor-Khedive Mining Co., Ouray, Colorado 822. 

Baffle 

Bagasse In sugar refining 

Hallev Cobalt Mines. Ltd.. Giroux Lake, Ontario.. IS 
Bain. H. Foster ... .Rand banket. Horwood replies to d's- 

cussion . . . .297. 

Bains. Jr., Thomas M Machine drilling efficiency. . . . 

Balaghat Gold Mining Co., Ltd.. India 

Balaklala Consolidate,! Copper Co.. Kennetl, California.. 

Company report 

Balbach Smelting & Refining Co.. New Jersey 

Balkan mine. Alpha. Michigan, accident 

Ball-mills. Ilardinge. and cemented gravel 

Baltic mine. Michigan. Copper Range Consolidated ... .418, 

424. 655. 
Bancroft Hcwland ....Some tailing dumps In the Peruvian 

Andes. . 

Bandmann. Charles .1.. death of 

Bank of England Told reserves Editorial .... 

Bank of Germany gold reserves Editorial .... 

Bai'lte. Alaska, Castle Islands occurrence 

Deposit near Wrangell, Alaska. Ernest I* Rtirehard. . . . 

II. S. production 

Barnato group. Rand 

Barnes-King Development Co.. Montana 701, B23, 

Company report 

Plegan-Gloster mine 503, 

Barr, .Tames A., confusion of two Editorial.... 

Barstow mine. Ironton. Colorado 

Bartlesvllle Zinc Co.. Colllnsvllle smelter '• II Leslie.... 

Bartlesville. Oklahoma, smelting practice 

Barytes, California production 

U. R. occurrence 

U. S. production 104, 

Basalt. Ireland production 

Bates Leasing Co., Colorado 

Batopllas Mining Co.. Chihuahua 126, 

Battery house and crawl girders 

Stem guides. Little Wonder 

Bauxite. Arkansas 

Ireland production 

Bead bake Gold-Copper Mining Co.. Washington 

Bearing metal. New 

Bearings, cam-shaft 

Beaver Consolidated Mines. Ltd.. Cobalt. Ontn**|o 

Beaver Gold Mines Corporation. Utah, Sheep Hock mine.. 
Beck Tunnel Consolldal.d Mining Co.. Sliver Citv, 

Utah 117, 

Becker. Clyde M Sulphur deposits of southwi 

Texas. . . . 

Beehive coke oven, temperatures 

Beet sugar residue and cyanide, Germanv 

Belcher silver Mining Co.. Gold Hill. Nevada 659, 

Belgians, Help the Editorial 

Belgium, neutrality Editorial .... 

Relief work, and California engineers . . . .Editorial. . . . 

Smelters 

South American trade i 

Zinc production Editorial.... 

Bell Reef Development Co.. btd., Rhodesia 

Belt conveyors, new use for 

Ben Hur Leasing Co.. Republic. Washington 435, 



707 

931 
223 
815 

779 

996 
843 
255 
879 
581 
889 
306 
430 

658 

.805 
738 

743 
743 
348 
371 
3 is 
112 
975 
310 
658 
317 
822 
21)1 
41 
929 
412 
412 
552 
777 
652 
729 
-,sl 
661 
552 
660 
567 
567 
702 
117 



296 
496 

729 
S95 
711!) 
359 
903 
.IT, I 

T'c: 
278 
959 
SI 
537 



I If I 



MINING PRESS 









■ 

■ 

III 

l 
.. ' 

■ ' ■'■• • i | 

iim-iii (-in RtndK h 

trni ■ j ■ . ( Inn I " . 

-'• lh ".t.l bomln , , . - 

Uaaka Bra id Pass District 

uniru. i ' . 

1 Pass iliMri t. Alaska, report , . 460 

VM'I i. [...! t. ,i Mas I , Editorial, . . 4 69 

Blrdi md n.t- • in mlnM 67 

irck Mining Co., Platlron, BouUi Dakota 

I 

Bismuth ration, Thum prooeal 

• i alia production 

Boll* la production , ,. , 590 

Pel u pi oductlon -,yn 

1 production 

onj production 590 

Spain production 690 

on 

Wolfram, Queensland production 961 

Bltumlnoui rock. California production 

Black Jack Consolidation Mining Co., Silver City, Utah., 117 
Black <»iik Development Co., Boulebyvllle, California mill 

Olivet filters 558 

Blacks tone, Richard, Homestake superintendent eyti 

Ditto Editorial 544 

Bla«'kWi>U'r If In ea, Ltd., South [aland, New Zealand ....144, 1004 

■ 'otnpany report 466. 614 

i 526 

Black welder, Eliot.. Origin --r the Rookj M<*nntHin phos- 
phate depoalta 987 

Blair. J. I Weighing minute spheres of gold and 

allver 526 

Blast- furnaces, Melting out slag notches 994 

Blasting by wholesale at W. von Bernewitz. . . 646 

Blue Bell mine, Alaska :: 1 1 

Blue Goose Mining Co., Oklahoma <_- 

Bluestnn ■ nun.-. Nevada, and Mason Valley Copper Co 7" 

Blust-*t niinc. Nevada 857 

Blyth, W. B Tube-mill practice and the bard nee 8 

of ores. ... 93 

B. at ft B. Mining Co., Wisconsin. Blddlck mine 457 

Board measure 924 

Bolleau. John Wesley, death of »;:'l 

Boiler tubing 22 

Waste heat 300 

Bolivia, bismuth production 590 

• ductlon 120 

Imports and exports 792 

Incaoro Mines Co 796, 920 

Ditto R. B. T. Killani 800 

Mine ownership Editorial. . . .939 

Mineral resources 794 

Mining operations and war 920 

Tin deposits Editorial 585. 791 

Bonanza King mine. Trinity Center. California 734 

Bonanza mine, Alaska 499 

Bonnie Mining Co., New Mexico loos 

Borax, California production 501. 567, 929 

U. S. production 567 

Borax Consolidated, Ltd., Peru and Arequipa borax fields 

Editorial 125 

n Must prevention process 49 

Gold Mining Co.. Good Springs. Nevada, palladium.. 990 

Platinum discovery 503, 576, 736 

1'latinum-gold lode deposits Adolph Knopf.... 990 

Boston Curb reopened 695 

Boston Stock Exchange opened 1002 

Boston & Montana Development Co., Montana. .459. 695, 823 

Bottomless scraper 96 l 

Boulder Creek Mining Co., Alaska and Dease Creek syndi- 
cate 69 

Boulders. Handling, at Andrada ..L. C. de la Marllere.... 761 

Bournonite, occurrence in Park Cltv mines, Utah 463 

Brad en Copper Co., La Junta. Chile 121, 154. 159, 190, 

313, 465, 497. 530, 739. 1005 

Ditto 509 

Braden mine. Oregon 195 

Bradley. P. W Mining and Metallurgical Society, San 

Francisco section dinner to Editorial. . . . 787 

Brakes, hoist 768 

Brakpan Mines Co., Rand .-.. 112 

Bratnober. Henry, death of 464 

Brazil, diamond production 793 

Imports and exports 792 

Manganese 724 

Mineral resources 793 

Ouro Preto mine 846 

St. John del Rey Mining Co., Ltd 765, 793 

St. John del Rey Mining Co., Ltd., Morro Velho mine.. 192 
St. John del Rey Mining Co., Morro Velho mine. Per- 
sistence of ore at T. A. Rickard.... 985 

Brl^k. California production 929 

Illinois production 524 

Briseis Tin & General Mining Co., Ltd., Tasmania, com- 
pany report 236, 248 

Cross-section of mine 275 

Dredging 220, 693 

Britannia mine. British Columbia, aerial tramway 886 

British Columbia. Atlin minng district 611 

Boundary and Kootenav districts 117, 273 

Mine fatalities 233 

Mineral production 346 









I 
Murti 






■ 
■ 11. mint; dl 



528 



Brll ,| lltl 

Brltlal 

Oold production 

■■'• rlok, C, T Rook 1. 

■"*•«!, !::■■■::;. 
" r " k, p„n !",!';,::! 

Pin 

Br °Compunj S ? Ul orf" V,t *"""" ' 

Browne. David 11 i malting ...,i >|. 

Brunawlck I onaolldated Oold Mining ... 

Buckhorn Mines Co., Beowawe, Nevada 

Mill, Nevada ' 1T1 

BiiekiiiK versus hacking nature ....'/.*. Bdl to 

BucyruB Co., dipper dredges, Panama canal . 

Dredge construction in Portuguese East Africa 1 77 

oppi t mines, California, nth- suit. . 

Hurra in Hump, Bui k. , Idaho 

Buffalo Mines, Ltd., Cobalt ■ intarlo, n, 

1, ,, ,, . 181, Si 

Building ft placer mining dredge with electric power olani 
„ .... '" Portugal H. <;. Peake 

Bullfinch Proprietary. Ltd., South. -m CrOBS, 

tralla 

Bullion molds, silver capacity 340 

Bullion Beck ft Champion Mining Co., Eureka Utah.. 117 

Bullwaeker Copper Co., Montana 

Closed 1 

Bullyelioop Mining Co., California, claims jumped ....".!! 893 

Bunker Hill & Sullivan Mining 6 1 1 i n k Co.. Kol- 

logg, Idaho 30, 77. 23 1. 860, 884, 

iccldents 

Lessees 168 

Malm process Editorial. . . 903 

v. Stewart Mining Co ;;;:, 

Bunker Hill Consolidated Mining Co., Amador Cltv. Cali- 
fornia 71. 502 

'•arrow tailing treatment Kiank Lawrance., 

Bunk.r Hill mine, South Dakota 655 

Burchard, Ernest F Barlte deposit near W range 11, 

Alaska , . . ::?1 

Bureau of Labor Safety Editorial. . . .277, 860 

It nre: 1 11 of Mines and Bureau of Labor Safety 121 

And Department of Labor Editorial. ... 360 

Artificial respiration 765 

C\hiblt at the Exposition 145 

Experimental mine. Pittsburgh, explosion test *77 

New buildings of 591 

Petroleum division Editorial. ... 1 

Petroleum library Editorial .... 710 

Radium Investigations, Denver Editorial .... II 

Rescue stations, birds and mice 67 

Safety work and Bureau of Labor Safety 

Editorial 277, 360 

Bureaus, government and representative soeietv jm-. -tings. I 9 1 

Ditto Editorial 168 

Burma Corporation, Ltd., company report 707 

Burma ruby mines. India 20S 

Burr. William A Efficiency of the burro.... :>L'l 

Ditto How to make money though mining.... 591 

Burro. Efficiency of the William A. Burr.... 521 

Burro Mountain Copper Co., Tyrone, New Mexico 73? 

Profit-sharing 533. 653 

Burton, C. S Stabilization of the copper market.... 760 

Bury Compressor Co., variable volume air-compressor . . .■ 124 

Business and European war 228 

And New York market 109. 1 90. 268 

And politics Editorial 43 

Outlook, U. S. and war Editorial 667 

Butte and Lead — a contrast Editorial .... 318 

Mines and European war 266 

Mines unions 42 f 

Butte-Alex Scott Copper Co., Butte, Montana 461 

Butte & Superior Copper Co., Ltd., Butte, Montana. ... 19 t. 
347, 458, 461, 530, 580, 659, 662, 701. 705, 851, 854. 

898, 975, 97S 

And Eutte-New York Copper Co., new claims 68 

Apex rights suit 931 

Company report 310, Sfi! 

Taxes 331 

v. BIni Orlu Mining Co 154, 194. 576. 867 

v. Minerals Separation Editorial.... 11 

Butte-Ballaklava Copper Co.. Butte, Montana 271, 461 

Butte-Bullwacker Mining Co., Montana 701 

Butte Central Mining and Milling Co. organized 458 

Butte r 'reek Consolidated Dredging Co. and Leland Stan- 
ford University 821. 973 

Butte-Duluth Mining Co.. Butte. Montana 461. 576. 701 

And Anaconda Copper Co 1005 

And Hayden. Stone & Co 926, 969 

Ditto Editorial 904. 949 

Leaching plant 158 

Butte-Milwaukee Copper Co. and Butte-New York Cop- 
per Co 68 

Butte Mine Workers Union Editorial.... 360 

And Western Federation of Miners 189 

Butte-New York Copper Co. and Butte-Milwaukee Cop- 
per Co 68 

Butters Salvador Mines Co.. Salvador. Central America... 

648, 798. 952 



MINING PRESS 



Vol. 109 



1 'a ge. 



Consolidated, Duluth, Minnesota, organized 

laslo Design of the Plymouth mill.. .. 

in shafts 

Ine, Joplln district production 

inla, reorganized 

Idaho 76, 270 

dl Btrld 

And Hawaii lumber 

m work on mining claims 

ii"> Ion 

ictlon 

.Titles, lyi3 

i '■• mines consolidation 

Aging , 

Ian relief work Editorial 

ilon 

Editorial 

and for taxes In 

dges, map 

oductlon by countli 

gold mining district 

Hydraulic mining litigation C. s. Haley. .. .914, 

Hydraullcklng Editorial. . . . 

Industrial Accident Commission 

i dial Accldsnl Commission and mine owners .... 

Ditto Editorial 711, 

industrial Accident Commission and Workmen's Com- 

Editorial .... 

Industrial Accident Commission, report in. 

Jackson gold mining district 

Julian district mines 

Kennett district 

Lead production by counties. 1919 

amber of Mines and Oil bulletin 

I'Hto Editorial 

Macadam production 

afasrni site deposits 

Ditto Editorial. . 

Magneslte production 

Ifaryavllle gold-dredging lands Editorial. .. . 

Mine operators association 

Ditto Editorial 

Mine Owners' Casualty Indemnity Exchange 

Editorial 

Mineral production 501, 

'Min. i .i ' i lifornia' 

Mining and war 

Mining revival Editorial .... 

Mono Lake basin placer ground 

Mother Lode, metallurgical practice Editorial. . . . 

Mother Lode, metallurgical practice and Plymouth mill 
Moi i Ion, activity 

Mother Lode region, map 

Mi Laasen, Eruption of William H. Storms. . . , 

i nl and gas land legislation, Washington, D. C 

Industry 

Petroleum production 36. 193. 383. 699. 855, 

Ditto Editorial. . . . 

Platinum production 

Portland cement production 

Potash, Discovery of Whitman Symmes. . . . 

Quarries 

Quicksilver production 

Rubble production 

"Safety First' movement Editorial. . . . 

Salines 

San H-rnardlno County tungsten ores 

San Fra.iclsco bay, Blasting by wholesale 

M. W. von Berne witz .... 

San Francisco firat-ald contest 

OUnty mines 

i ncient auriferous grav, I - 

Silver production hy counties. 1913 

Siskiyou County mines 574, 

Soap urrence 

Son ore district mines 29, 76, 618. 930, 

Southern, .nap 151, 

Southern Oregon and Northern California Mining 
ress 

Trinity county, map 

Water in oil sands and Mining Bureau. .. .Editorial. .. . 

Workmen's Compensation again Editorial .... 

Workmen's Compensation and Mine Owners Casualty 

Indemnity Exchange Editorial .... 1, 

Workmen's Compensation Insurance fund 

Workmen's Compensation Insurance rates tumble .... 

Editorial 

551ne production. 1913 

California -Alaska Mining Co 

California Motr.1 Producers Association 

Ditto Editorial. . 

Articles of Association 

Directors Editorial. . 

Call fern Is Portland Cement Co. suits settled 

California State Mining Bureau oilfields, water damage.. 

Editorial 

Calumet & Arizona Mining Co, Warren, Arizona 2S. 

74, 121. 20$. 209. 313. 422. 572. S92. 

Douglas smelter 

New Cornells mine Ajo ores 209. 252, 291. 

Calumet. Michigan 68. 

121. 232. 266. 268. 310. 347. 350. 380. 382. 418. 
420. 456. 576. 817. 873, 928. 934. 

;'algn 268. 

■ ■hint? plant 

T^each'ns process •. Editorial. . 

:ih nf service of miners 

■S if< ■• v First' 

ne claims 4is. 

. Motor mine, Rhodesia 72. 336. 7G6 

Cam for stamp-mills, improved Arthur B. Foote.... 

1 1 bearing? 154, 



68 
670 
BIS 
351 
829 
B22 
460 
924 

647 

349 

719 

349 

■ 
943 

930 

820 



911 

161 

i€ 
349 
930 
903 
64 7 

:.74 

940 
526 

2"1 
734 
432 

587 

929 
114 
379 

41 
893 
668 
870 
150 
150 
143 
191 
892 
935 
27 7 
842 

38 
883 
647 
217 
617 
239 
821 
821 

B 1 6 
574 
699 
269 

34a 

S56 

919 

1007 

821 

157 

1007 

667 

587 



41 
157 

941 
34 9 
311 
734 
74 3 
764 
787 
114 



978 
269 
383 



969 

763 
192 
361 
375 
942 
576 

955 



970 
904 



2:::: 



Page 

rtbrldge University and Louvaln University 

Editorial..!! 585 

Camp Bird. Ltd.. Ouray, Colorado 231 822 931 

Company report 42S, 689, 7^: 

Finance conditions \&-> 

Mining costs [[ -■•?, 

to, Calgary oil district ....31, 273. 345, 678 

824 

Uoei ry oil district and war 3$t» 

Alberta, Calgary oil district discovery of black oil . . . . 6s 

erta, Calgary oilfield, gasoline production 191 

tning industry 573 

Alberta, Edmonton oil discovery 896 

Alberta, oil districts 660 

« !opi 1 ion 12(>, 689 

Copper Bmeltlng in 

Iron mining and government bounty Editorial 585 

I ion mining Industry 732 

Klondike, Operations of Yukon Gold Co 

E. E. Hurja 568 

Manitoba, Rice Lake gold district 573 

New Brunswick antimony 970 

Nickel and war 772, 969 

Editorial 904 

.s'ickel industry ::;_• 

Nova Scotia mineral occurrence 196 

Petroleum production 935 

Timber for mines 970 

Weiiand canal 924 

Yukon, Dawson district geology 771 

Yukon Klondike district, map 770 

Canada Iron Corporation reorganized L52 

Canadian Coal & Coke Co 572 

Canadian Capper Co., Ontario 689, 

Nickel production Editorial. . . . 

Canadian Copper Corporation. Ltd., and British Columbia 

I topper Co 

Canadian Gold Fields, Ltd., and Consolidated Mining & 

Smelling Co 151 

Canadian Goldfields Syndicate, liquidation 6S 

Canadian Klondyke Gold Mining Co.. Ltd.. Yukon 31, 

587, 738. 825. 896 

Dredging 454 

Operations of the Emit Edward Hurja.... 769 

Canadian Mining & Finance Co 345. 573 

Canal, Panama, power-plants 223 

Cananea Consolidated Copper Co., S. A. Sonora. Mexico .. 121 

Fire 233 

Troubles 196 

Cancer treatment, compressed air superheated 340 

Candllsh milling process 420 

C. A O. Mining Co., Pinos Altos. New Mexico 653 

Cape Cod canal opened Editorial.... 2111 

Cappeau furnace 205 

Carbide lamps and explosives 135 

Carels Freres. Belgium Editorial.... 431 

Caril -Cobalt Mines Co.. Cobalt, Ontario 159, 580, S91 

Carlsa Gold & Copper Mining Co.. Mammoth, Utah 117 

Carnotlte, cost of mining and delivering 30 

1*. S. production 649 

Carr mine. Colorado, lessees' shipments 502 

Casados silver-gold mine. Hostotipaquillo district, Jalisco, 

Mexico, confiscated 71 

Caeey Cobalt Mining Co., Ontario 159, 463 

Catlln. W. Prince True fissure veins. . . . 566 

Caving svstem of mining In Lake Superior iron mines.... 

J. Parke Channlng.. 451 

Celestite 415 

Texas occurrence 927 

Cement. Bureau of Standards, Washington. D. C 220 

lornia production 501. 929 

Gun In mines 877 

Michigan production 705 

New Jersey production 705 

Plant. Philippine Islands 1000 

Plants dust-fall 22 

Portland, Illinois production 524 

Portland. Kansas production 705 

Portland. Missouri production 664 

Portland, Pennsylvania production 664 

Queensland, and Gore limestone deposits 381 

Texas production 466 

U. S. Industry 566 

Centennial Copper Mining Co., Calumet. Michigan 232. 928 

Certennlal-Eureka Mining Co., Eureka. Utah 117. 503 

Cs ve-ln 536 

Center Star Mines. Rossland. British Columbia 346. 933 

Central America. Salvador, gold and silver exports 648 

Central American Mines. Ltd.. company report 707 

Central Eureka Mining Co., Sutter Creek. California 734 

Central mine, Broken Hill. New South Wales, pneumatic 

rs 378 

Central Zinc Co.. England 304 

Century. Webb City. Missouri 1008 

Cerro fle Pasco Mining Co., Cerro de Pasco, Peru 121 

Cerro Gordo Mining Co.. Keeler. California 230. 930 

Ceylon, mining 634 

Plumbago 63 4, 844 

Chaffers Gold Mining Co.. Ltd.. Kalgoorlie, Western Aus- ' 

tralla 498. 8S * 

Chambers-Ferland Mining Co.. Ontario, and Aladdin Min- 
ing Co 

Champion Copper Co., Copper Range Consolidated. Patnes- 

dale, Michigan 418. 424. 

Comparative drill efficiencies 

•*hnmri«n Beef Gold Mining Co.. Ltd.. India 265, 

Chandler, H. A. E Mine taxation and the conference of 

inx officials 838 

Channeling machines 124 

Channlng, J. Parke ....Caving system of mining in Lake 

Superior iron mines 451 

Ditto Design of the Plymouth mill.... S46 

Cbapin, Milne. Grenfell & Co. failure 6S. 162 

Chapman gas-producer 398 



152 
658 



958 






MINING PRESS 



■ nr. l'l«|, 

l.tlllll . 



U> Junta' 



.v Bl I 









111, II 



Edltoi 

lU.Tlnl 



i ioro. . . 

Editorial. ', 

— '.'. Editorial! ! 







lion 

ii"; cporti 

Ul'or crl»l« In 

■ -hip , 

Mil 

Nitrate export problem 

v poits 

auction Editorial 

imp |9i 

"'"" Kdllorlal 

A Bolivia rallwnv 

exploration Co Editorial 

China, finances Editorial. . . . 

Mongolia. 

Klaocbow, mining near ...!!! 

ol louthweatern 

Mongolia map '.'.'.'..'. 

Bsu-ohuan Petroleum, gas, and brine wella of '. . . 

Thomas T. ami M. Carleton Read..., 

ng * Mining Co 

Chlneei mechanics, shanghai book A Engineering Co. .. 

Chlno ■ Santa Rita, Mow Mexico ....68. 181 .Ms 

313. 427. 458. 46:'. 533. 653. 694. 890. 898. 969. 

Company report 872 

Taxes .' 

ChlorldUing roast. Rejuvenating the 

F. s.. in ui. t Schmidt. . . . 
Ohlorlnatlon applied to complex sulphide ores 

Process. Titus 

Chrlslensen chlorlnatlon process 25. 

Cbrlaty, s B.. death of Editorial. . . . 

Chromlte. California production 

Chromium. U. S. production 

ClnCO Minns. Mexico 

Cinderella Deep mine. Hand, sand tilling 

Cinnabar. Arizona, discovery 

Cinnamon Blppo mine. West Africa 814. 

City Deep, Ltd. Southern Wltwatersand. Transvaal 

City of Cobalt Mining Co 

Clack, Tin-., .v.. Portable assay outfit 

Claim locations by employees 

Olapp process Editorial 

Classification methods, modern 

Clay. California production 501. 

son production 

Products, Georgia production 

Products. Kentucky production 

Products, Missouri production 

Products, New Jersey production 

Products, Pennsylvania production 

Products. Utah production 

Products. Virginia production 333. 

Products. Washington production 

Cleveland-Cliffs Iron Co., Athens mine 

Electric hoists in mines P. E. Stanford.... 

Lloyd mine. Michigan 576, 

i 'l.v.-land Mining Co., Wisconsin 

Clevenger, G. H.. Function of lead salts In cvanidati.m . . . . 

Clltf Mining Co., Alaska 

Cllft mine. Utah 

Coahulla Lead & Zinc Co.. Webb City, Missouri 

Coal. Alabama production 

Alaska, area of lands 

Alaska fields, map 

Alaska lands, leasing Editorial. . . . 

A!;, ska leasing bill 498. 571, 

Alsace-Lorraine production 

Anthracite culm 

Anthracite, Pennsylvania, and electricity 

Arkansas production 80, 

Australia and New Zealand government mines 

California production 

Colorado production 135. 

Dredging for Editorial .... 

Dust firing Editorial.... 

Dutch East Indies production 

Fields, England German Interests in 

France production 

Gas, cyanogen in 

Gas. manufacture 

Georgia production 

Hungary imports and production 

Ttlinois mines wash-houses 

Illinois production 466. 

India, production of British 

Indiana production 

Iowa production 

Ireland production 

Kansas production 80. 

Kentucky production 248, 

Maryland production , 

Mines. Electric power v. mules In 

Mining and automatic machinery 

Missouri production 38. 

Montana production 176, 

New Zealand production 

North Dakota production 

Nova Scotia mines and war 

Ohio production 

Oklahoma production 

Oregon production 



89.-. 



SOU 
101 

303 
191 
911 
795 
911 
87« 

509 

:••: 
185 

410 

.'.:■:■ 

41'l 
629 

r:v 

971 

883 
1009 

321 
26 
808 
195 
865 
92? 
861 
5X11 
804 
156 
955 
307 
421 
491 



567 
929 
705 
466 
664 
664 
706 
664 
705 
605 
77 
773 
446 
595 
817 
635 
2 63 
117 
1008 
634 
308 
342 



615 
451 
768 
651 
664 
693 
929 
705 
625 
830 
328 
925 
184 
847 
693 
466 
212 
886 
524 
17 
38 
80 
552 
705 
664 
236 
728 
529 
664 
705 
919 
80 
970 
66 1 
181 
705 









i ml 



..■.«.. 



.10. 333, 



.15>, 537, 



lion 

I. in i 

i ■ - mil 

- 1 In. 'lion .., 

dui i ".n 

vii Kim., | i oduotlon 

hlngton production 

I Virginia produotlon 

lion 

i Jobs it i int. i rlo pi .'.in ii 

Cobalt Lake Mining ''" . Cobalt, i 
I'.ih.iit Reduction Co., I intarlo . 

Townslte Silver kilning Co., Ltd Ontario.. 

Code addresses and war.. editorial.... 

C O. l> mini 

CokSi Alabama production 80. 

irado production 

miauls produotlon 

Kentucky production 

New Mexloo produotlon 

Mew Zealand production 

Pressure-sustaining 

i*. B. production 

Virginia production 333, 

Colbii'n-AJax mine. Cripple Creek. Colorado 76, 231. 

423, 575. 735, 
Coleman mine, Utah 

c.illlnan '.intact. Km. a. Geologlcn I reporl Within t] 

mining concession D. P. Hlgglns. . . . 

Collins. George E Harrlmans and mining.... 

Collins, W. F Revision of the mining law.... 

Colltnsvllle smelter of the Bartlesvllle Zinc Co 

E. H. Leslie 

Colombia, gold exports 

Imports and exports 

Map of 

Mineral resources 

Orovllle Dredging. Ltd 404. 621, 

Or,. vllle Dredging, Ltd., Pato dredge 537. 738, 825, 

Orovllle Dredging. Ltd., Pato dredge difficulties 621, 

Prospecting on the Upper Magdalena. . .C. S. Haley ... . 

Colombian Mining & Expl. Co., Ltd.. company report 

Colorado, Breckenridge district 

Rreckenrldge dredging companies 

Oarnoilte ore shipment 

Clear Creek and Gilpin county sulphides. Cyanldatlon . . 

Jackson A. Pearre. . 

Coal production 

Coke production 

Creede district mining 

.'npple Creek district mines 75, 423, 461. 535. 575, 

618, 658, 700, 735, 856, 894. 931. 974, 

Cripple Creek mines. Granite and Vindicator suit 

I-Vrberite deposits 

Gilpin County mines 

Hughesvllle district 

Idaho Springs district mines 

T.eadville district and war ii • v-V 

Leadville district mines 23, 157. 194, 350, 535. 575, 

658. 700, 734. 818, 856, 894, 
Leadville ore deposits. Siderlte and sulphides In — I, II.. 

Phillip Argall ... .50. 
Leadville ore deposits, Siderlte and sulphides In — a cor- 
rection Phillip Argall 

Metal production 

Mineral production 

Ouray county minerals • • ■ - 

Ourav shipments s £-. 

Petroleum production • .... • • ■ ■ ■ • • • ■ • -36. 

Roosevelt drainage tunnel 194. 310. 384. 461. 658, 

San Juan district, map 

San Juan district mines • - - ■ 

Sllverton district mines 4". 

Sllverton ore shipments ............. 

Smelting In Editorial 

Tellurtde cloudburst ■ 

United Mine Workers of America trial 

Zinc production 

Colorado Fuel & Iron Co.. company report 

New Mexico mines 

Colorado Gold Dredging Co., Colorado ......... . .... 

Colorado Gold Mining & Development Co., Colorado suit. . 
Colorado Mining Co.. Silver City. Utah ............. 117, 

Oolvin. Clarence K Revision of the mining law 

Commerce. Department of, and Bureau of Labor Safety . . 
U S Bureau of Domestic and Foreign .. .Editorial. . . 

Commerce Mining & Royalty Co.. Oklahoma 

Commercial Mines & Milling Co.. Nevada 

Commonwealth gas producer 

Commonwealth Mining & Milling Co.. Pearce. Arizona. .. 

657, li^v. 



.733. 



««l 

1«T 

•0 

HI 

l»s 
• 34 

18 

705 

eofi 

77 

is 

977 
169 

709 

384 
631 
112 
80 
107 
1"! 
919 
108 
567 


931 
1010 

95 

204 
878 
792 
406 
796 
720 
1010 
652 
404 

37 
157 
856 

29 

833 

135 
142 
424 

1008 
508 

886 
894 
1007 
699 
420 

974 

128 



148 
231 
705 
931 
931 
935 
777 
424 
11.". 
461 
658 
941 
194 
911 
251 
777 
775 
720 
735 
858 

mi; 
421 
239 
928 
31 
155 



Oliver niters 

Commonwealth wood-gas generator 

Company reports: 

Alaska Gold Mines Co . . . . . .... 

Amalgamated Zinc (De Bavay'sl Co.. Broken Hill.. 724. 

American Smelting & Refining Co .497. 

Associated Gold Mines of Western Australia, Ltd 

Babllonla Gold Mines. Ltd 

Balaklala Consolidated Copper Co 

Barnes-King Development Co., Montana 

Blsmark Mining Co.. Flatlron. South Dakota.......... 

r.lri'-kwnter Mines. Ltd.. South Island. New Zealand. .466, 

Brine's Tin & General Mining Co.. Ltd 237. 

Tt r nir«n Hill Proprietary Block 10 Co.. Ltd.. New South 
w'nles 

Broken Hill Proprietary Co., Ltd., New South Wales . . 



975 
555 
381 



657 
1013 

5S1 

sir, 

ViiT 
581 
310 
663 
fil I 
2 IS 

37 
783 



MINING PRESS 



Vol. 109 



Page. 



oil da ted, F'uiuth. Minnesota, organized 

Ign of the Plymouth mill. . . . 

In shafts 

oplln district production 

ilifurnla, reorganized 

270 

district 

And Hawaii lumber 

ii work on mining claims 

• II 

notion 

counties, 1913 

» •••*■■■ 1 mines consolidation 



lief work Editorial! .. '. 

natural, production 

Bdltorlal 

laud for taxes in 

' told dredges, map 

oductlon by counties, 1 :t 1 3 

1! y gold mining district 

Uon C. S. Haley, .. .914, 

Hydraullcklng Editorial 

Industi lal Accident Commission 

Industrial Commission and nun. owners .... 

J 'H'" Editorial ;n. 

Industrial Accident Co mm Workmen's 

ates Kditorial ... . 

Industrial Accident Commission, report 111 

Jackson gold mining district 

Julian district mines 

Kennett district 

Lead production bj counties, 1918 

Angeles Chamber of Mines and Oil bulletin 

I'Mto Editorial 

Biacadn m production 

Magnetite deposits 

Ditto Editorial. . 

ncsfte production 

Haryavllle gold-dredging lands Editorial.... 

Mine operators association 

Ditto Editorial 

.Mine Owners' Casualty Indemnity Exchange 

Editorial 

Mineral production 501, 

'Minerals • >{ < 'alifornia' 

Mining and war 

Mining revival Editorial .... 

M< 'no Lake basin placer ground 

Mother Lode, metallurgical practice Editorial. . . . 

Mother Lode, metallurgical practice and Plymouth mill 

Mother Lodi region, activity 

Mother Lode region, map 

Mt. Lassen, Eruption of William n stm-ms 

1 mi and gas land legislation. Washington, D. C 

Petroleum industry 

Petroleum production 36. 193. 383. 699, 855, 

Ditto Editorial 

)'i-i tlnum production 

Portl "t production 

ilscovery of Whitman Symmes. . . . 

Quarries 

Quicksilver production 

Rubl Ic production 

'Safety First' movement Editorial. . . . 

Salines. 

Sau Bernardino County tungsten ores 

Ban Francisco bay, Blasting by wholesale 

M. W. von Bernewltz. . . . 

San Francisco first-aid contest 

Shasta County mines 

Siena County ancient auriferous gravel channels 

Silver production by counties. 1913 

Siskiyou County mines 574, 

Soap u rrence 

Sonora district mines 29, 75. 618. 930. 

Southern, .nap 1 ," l , 

Sdutl -'on and Northern California Mining 



Trinity county, map 

Waii i In oil sands and Mining Bureau . . . .Editorial. . . . 

Workmen's I tompensatlon again Editorial. . . . 

Workmen's Compensation and Mine Owners Casualty 

Indemnity Exchange Editorial. . . .1, 

Workmen's Compensation insurance fund 

Workmen's Compensation insurance rates tumble 

Editorial 

Zinc production. 1913 

California-Alaska Mining Co 

California M*tal Producers Association 

Ditto Editorial.. 

Articles of Association 

Directors Editorial. . 

California Portland Cement Co. suits settled 

California State Mining Bureau oilfields, water damage.. 

Editorial 

Arizona Mining Co , Warren. Arizona 28, 

74. 121, 20S. 209. 313. 422. 572, S92. 

Douglas smelter 

Ww Cornells mine A io ores 209. 252. 291. 

Calum< Mining Co.. Calumet Michigan 68. 

Ill, 282, 266, 268, 810, 247. 350. 880, 382, 418, 
420. 456. 576. 817. 873. 928, 934. 

lency campaign 

chins; plant 

-s Editorial . . 

I.t-neth of service of miners . . . . # 

iv First' 

Whit" Fine claims 

("am \- Motor mine, Rhodesia 72. 336, 761 

Cam i mills, Improved Arthur B. Foote. . . . 

rings 164, 



68 

670 

351 
829 

B22 
460 

567 

647 

349 

719 
903 

■ 

349 
350 

930 
820 



941 

350 
151 
350 
349 
930 

647 
574 

940 
526 
201 
734 
4: 32 



929 

114 

41 
893 

668 
670 
150 

150 
i i.: 
191 
892 
935 
277 

t; 1 2 



617 
217 
647 
239 

821 

646 
574 

699 
26S 

349 
856 
919 
1007 
821 

167 

1007 



41 
157 

941 

349 
341 
734 
743 
764 
787 
114 

903 



269 
383 



969 
763 
192 
361 
375 
942 

959 



1*70 
904 






Page. 

Cambridge University and Louvaln University 

Editorial 585 

Camp Bird. Ltd., Ouray, Colorado 281, 822 931 

■ ipany report l&g, 689, 782 

Finance eruditions 162 

Mining costs 

■la. Alberta, Calgary oil district ....31, 273. 34".. 6*78, 

660, 824 

ajberta, Calgary oil district and war 386 

Alberta, Calgary oil district discovery of black oil . . . . 68 

Alberta. Calgary oilfield, gasoline production i*.»i 

ining Industry 

Alberta, Edmonton oil discovery 896 

Alberta, oil districts " 660 

• topper pr xRctlon 120, 689 

Copper smelting In 689 

mining and government bounty Kdltorlai 

Iron mining industry 732 

like. Operations of Yukon Gold Co 

E. E. Hurja 668 

Manitoba, Rice Lake gold district 573 

New Brunswick antimony 970 

kel and war 772. 969 

Editorial 904 

kel industry ;;:_• 

Nova Scotia mineral occurrence 196 

Petroleum pi oductlon 

Timber for mines 970 

Wt Hand canal 934 

Yukon. Dawson district geology 771 

Yukon. Klondike district, map 770 

Canada Iron Corporation reorganized 152 

Canadian Coal & Coke Co .".73 

Canadian Capper Co., Ontario 689, 

Xiekel production Editorial. . . . 

Ifan Copper Corporation, Ltd., and British Columbia 

Copper Co 

Canadian Gold Fields, Ltd.. and Consolidated Mining & 

Smelting Co 151 

Canadian G-ddflelds Syndicate, liquidation 68 

Canadian Klondyke Gold Mining Co.. Ltd., Yukon 31, 

537, 738, 825. 896 

1 1 red gin g 454 

Operations of the Emil Edward Hurja.... 769 

Canadian Mining & Finance Co 345, 573 

Canal. Panama, power-plants 223 

Cananea Consolidated Copper Co., S. A. Sonora, Mexico .. 121 

Fire 233 

Troubles 196 

Cancer treatment, compressed air superheated 340 

Car.dlish milling process 420 

C. & O. Mining Co.. Pinos Altos, New Mexico 653 

■ !od 'anal opened Editorial .... 201 

< teppeau furnace 205 

tamps and explosives 135 

Carela Frerea. n.dglum Editorial 431 

Caribou-Cobalt Mines Co.. Cobalt, Ontario 159, 580, 891 

Carlsa Gold & Copper Mining Co., Mammoth, Utah 117 

Carnotlte, coat of mining and delivering 30 

U. S. production 649 

Carr mine, Colorado, lessees' shipments 502 

Casados silver-gold mine, Hostotlpaquillo district, Jalisco, 

Mexico, confiscated 71 

Casey Cobalt Mining Co., Ontario 159, 463 

Catlin. W. Prince True fissure veins. . . . 566 

Caving system of mining in Lake Superior iron mines.-.. 

J. Parke Channlng. . 461 

Celestlte 415 

Texas occurrence 927 

Cement. Bureau of Standards, Washington, D. C 220 

1 'alifornia production 501, 929 

Gun in mines 877 

Mi'-hlgan production 705 

New jersey production 705 

Ulant. Philippine Islands 1000 

Plants dust-fall 22 

Portland, Illinois production 524 

1 '>.rt land. Kansas production 705 

Portland. Missouri production . 664 

Portland. Pennsylvania production 664 

Queensland, and Gore limestone deposits 381 

Texas production 466 

U. S. industi v 566 

Centennial Copper Mining Co., Calumet. Michigan ....232. 928 

Certennial-Eureka Mining Co.. Eureka. Utah 117. 503 

Cave-In 536 

Center Star Mines. Rossland, British Columbia 346, 933 

Central America, Salvador, gold and silver exports 64$ 

Central American Minns. Ltd.. company report 707 

Central Eureka Mining Co., Sutter Creek. California .... 734 
tral mine. Broken Hill. New South Wales, pneumatic 

augers 378 

Central Zinc Co.. England 304 

Century, Webb City, Missouri 1008 

Cerro de Pasco Mining Co.. Cerro de Pasco. Peru 121 

Cerro Gordo Mining Co.. Keeler. California 230, 930 

Ceylon, mining 634 

Plumbago 634. S44 

Chaffers Gold Mining Co.. Ltd., Kalgoorlie. Western Aus- ■ 

tralla 498. 854 

Chambers-Ferland Mining Co.. Ontario, and Aladdin Min- 
ing Co 152 

Champion Copper Co., Copper Range Consolidated, Palnes- 

dale. Michigan 418. 424. 65S 

Comparative drill efficiencies 876 

Champion Reef Gold Mining Co.. Ltd.. India 255. 95S 

Chandler, IX. A. E Mine taxation and the conference of 

tax officials BS8 

Channeling machines 124 

Channlng. J. Parke ....Caving system of mining in Lake 

lor iron mines 451 

Ditto Design of the Plymouth mill.... S46 

Chapin. Milne. Grenfell & Co. failure 68. 162 

ian gas-producer 398 



Vol 



MINING PRESS 









- ft^ i 

Chile i j. Junta ..ill, I u. i»6,V«V, 

Editorial 
Editorial 



89.'. 












. .Or.. . nine . 



. . lluucroft Gore. .. . 

.... . .. .Editorial!! ! ', 

■ ... ... .Editorial!! 



il.lle Copper Co 

Dltti 

I : ■ i| 

Imports an,i exports 

'..ibt.r crisis in 

M.t 



.Mli. 

Nlttat. aXDOrl problem ... 

Nitrate exports 

Mi r. u>. production Bdltorlal. ! 

l:*.» 197 

"I"" Bdltorlal 

.v llollvlu rallwnv 

Chile Exploration Co Editorial 

China, finances Editorial. . . . 

■ ;..i.i mining In Mongolia 

Klaochow, mining near !! 

Ifap ..t southwestern 

Mongolia map !! 

■ huan. Petroleum, gas. and brine wells of 

Thomas T. ini.i M, Carleton Road.... 

glneerlng .v. Mining Co 

Chinese mechanics, Shanghai book & Engineering Co. .. 

Chlno Copper Co., BantaJtlta, New Mexico 68. LSI, 208, 

313. 427. 158. 161'. 533. 653. 694. 890. 898, 969. 

Company report 272, 

Taxes 

Chlorldlxing roast. Rejuvenating the 

F. Sommer Schmidt. . . . 
Chlorlnntion applied to complex sulphide ores 

Process, Titus 

v'hrlstensen clilorlnatlon process 1'.",, 

Christy. S B.. death of Editorial 

Chromit. . California production 

Chromium. V. S. production 

Clnco Mlnas, Mexico 

H.i I p mine. Rand, sand tilling 

cinnabar. Arizona, discovery 

Cinnamon Blppo mine. West Africa 814. 

'Itv Deep. Ltd., Southern Wltwatersand. Transvaal 

City of Cobalt Mining Co 

clack. The... A.. Portable assay outfit 

Claim locations by employees 

''lupp process Editorial. . . . 

ii methods, modern 

Clay. California production 601, 

Oregon production 

Products, Georgia production 

Products. Kentucky production 

Products. Missouri production 

Products, New Jersey production 

Products. Pennsylvania production 

Products. Utah production 

Products, Virginia production 333, 

Products. Washington production 

Cleveland-Cliffs Iron Co.. Athens mine 

Electric hoists In mines P. E. Stanford.... 

Lloyd mine. Michigan 576, 

i Heveland Mining Co., Wisconsin 

Clevenger. G. H.. Function of lead salts in cyanidatlon. . . . 

Cliff Mining Co., Alaska 

Cllf t mine, Utah 

Coahuila Lead & Zinc Co.. Webb City, Missouri 

Coal. Alabama production 

Alaska, area of lands 

Alaska fields, map 

Alaska lands, leasing Editorial. . . . 

Alaska leasing bill 498, 571, 

Alsace-Lorraine production 

Anthracite culm ' 

Anthracite. Pennsylvania, and electricity 

Arkansas production 80. 

Australia and New Zealand government mines 

California production 

Colorado production 135, 

Dredging for Editorial 

Dust firing Editorial 

Dutch East Indies production 

Fields, England. German Interests In 

France production 

Gas, cyanogen In 

Gas, manufacture 

Georgia production 

Hungary imports and production 

Ttlinois mines wash-houses 

Illinois production 466, 

Tndia, production of British 

Indiana production 

Iowa production 

Ireland production 

Kansas production SO, 

Kentucky production 248, 

Maryland production . 

Mines. Electric power v. mules in 

Mining and automatic machinery 

Missouri production 38. 

Montana production 176. 

New Zealand production 

North Dakota production 

Nova Scotia mines and war 

Ohio production 

Oklahoma production 

Oregon production 



SOS 
110 

363 

939 
795 
981 

168 

1*6 
110 
160 

410 

629 
918 

7. "J 

978 

823 
1009 

324 
26 
80S 
195 
865 
929 
861 
580 
804 
156 
966 
307 
421 
191 
S.S6 



567 
929 

705 
466 
664 
664 
705 
664 
705 
605 
77 
773 
446 
595 
817 
635 
263 
117 
1008 
63) 
308 
342 
277 
615 
451 
768 
651 
664 
693 
929 
705 
625 
830 



925 
184 
847 
693 
466 
212 
886 
524 
17 
38 
80 
552 
705 
664 
236 
728 
529 
664 
705 
919 
80 
970 
664 
181 
705 



!■:. rial 









.117. 463. 
.169. 537. 



-in. 11.- it ... 
i problem 

U. S. minlr 

production .... 

I ' 8. « .i*te hoapi 

I 'ti'h produotlon 

Vn gtnla i i ...in. -tun 

nigt.>n production 

■ Virginia produotlon 

■ I n A USl I nil. i [ I u. i ion 

c. i. nit Ontario production 

Coball Lake .Mining Co., Cobalt, Ontario . 

letloi ntarlo 

Sliver Mining ■'■. . Ltd 

lea noil war.... I-:. lit ..rial ... . 

■ ' 1 1. 1 1 ii. Colorado 

mi production 80. 

Colorado production 

lllllll'l: [Mi Hi IK -til. It 

Kentucky production 

New Mexico production 

Ww /.en land production 

Pressure-sustaining 

r. B. production ■ 

Virginia production 333, 

Colburn-AJax mine, Cripple Creek, Colorado 75, 231, 

423, 575. 736. 

Coleman mine, Utali 

Collbran contact. Korea. Geological report within the sh.ui 

mining concession D. F. HlRglns.... 

Collins, George E Hnrrlmans and mining... 

Collins, W. F Revision of the mining law.... 

Collinsvllle smelter of the Bartiesvllle Zinc Co 

E. H. Leslie 

Colombia, gold exports 

Imports and exports 

Map of 

Mineral resources 

Orovllle Dredging, Ltd 404. 621. 

Orovllle Dredging. Ltd., Pato dredge 537, 738, 825, 

Orovllle Dredging. Ltd., Pato dredge difficulties 621. 

Prospecting on the Upper Magdalena .. .C. S. Haley ... . 

Colombian Mining & Expl. Co.. Ltd.. company report 

Colorado, Breckenridge district 

Breckenridge dredging companies 

Oarnoilte ore shipment 

t'l.ar Creek and Gilpin county sulphides, Cyanidatlon.. 

Jackson A. Pearce. . 

Coal production 

Coke production 

Creed* district mining 

Cripple Creek district mines 75, 423, 461. 535, 575, 

618, 658. 700, 735. 856. 894, 931. 974, 

Cripple Creek mines, Granite and Vindicator suit 

Ferberite deposits 

Gilpin County mines 

Hughesville district 

Idaho Springs district mines 

Leadville district and war ■ . . ■ ■■■ • 

Leadvllle district mines 23. 157. 194, 350. 535. 575. 

668, 700. 734. 818, 856, 894, 

Leadvllle ore deposits. Slderite and sulphides in — I. II. . 

Phillip Argall ... .50, 

Leadvllle ore deposits. Siderite and sulphides In — a cor- 
rection Phillip Argall 

Metal production 

Mineral production 

Ouray county minerals ■ • ■ ■ 

Ourav shipments 82... 

Petroleum production •.•:w"iii m V»V ' its' 

Roosevelt drainage tunnel 194. 310. 384, 461, 658, 

San Juan district, map 

San Juan district mines ■ ■ ■ • 

Sllverton district mines **■*' 

Silvet'ton ore shipments iii.V V ,' " " " 

Smelting In Editorial 

Tellurlde cloudburst 

United Mine Workers of America trial 

Zinc production 

Colorado Fuel & Iron Co.. company report 

New Mexico mines Iii < 

Colorado Gold Dredging Co.. Colorado ......... . .... 

Colorado Gold Mining & Development Co., Colorado suit. . 
Colorado Mining Co., Silver City. Utah .■■••/-.■■••,•■■• 117 ' 

Colvin Clarence K Revision of the mining law.... 

Commerce. Department of, and Bureau of Labor Safety. . 

U S Bureau of Domestic and Foreign .. .Editorial .. . 

Commerce Mining & Royalty Co., Oklahoma 

Commercial Mines & Milling Co.. Nevada 

Commonwealth gas producer ■ ■ 

Commonwealth Mining & Milling Co., Pearce. Arizona... 

oat, 82U, 



■•1 1 
,,,, 

IKS 
■ I 

38 
706 
006 

is 

977 
169 

70S 

384 

142 
80 
107 
Ml 
919 
108 
667 
605 

931 
1010 

96 

204 
878 
792 
406 
796 
720 
1010 
652 
404 

:i7 
167 
856 

29 

833 
135 
142 
424 

1008 
50 2 
886 
894 

1007 
699 
420 

974 

128 



Oliver (liters 

Commonwealth wood-gas generator 

Company reports: 

Alaska Gold Mines Co . ... . . .... 

Amalgamated Zinc (Be Bavay's) Co., Broken Hill. .724, 

American Smelting & Refining Co. ............... .497, 

Associated Gold Mines of Western Australia, Ltd 

Babllonia Gold Mines. Ltd 

Balaklala Consolidated Copper Co 

Barnes-King Development Co., Montana 

Bismark Mining Co.. Flatiron. South Dakota ..... .... 

Blaekwater Mines, Ltd.. South Island. New Zealand . .466, 

Brise's Tin & General Mining Co.. Ltd 237. 

-rtr"''"" Hill Proprietary Block 10 Co., Ltd., New South 
Wales 

Broken Hill Proprietary Co.. Ltd.. New South Wales . . 



148 
231 
705 
031 
031 
935 
777 
424 
115 
461 
658 
Oil 
194 
031 
354 
777 
775 
720 
735 
858 
106 
421 
239 
928 
31 
155 

975 
555 
381 



657 
1013 
581 
315 
707 
5S1 
310 
668 
611 
248 

37 
783 



-i. 



MINING FRESS 



Vol. 109 



ten Hill South Silver Mining Co.. New South Wales. 

Litd • • • • 

Uutte * Superior Copper Co., Ltd.. Montana J10, 

lorado 423. 689, 782, 

I '.-mi ill AJ 

Chief Con Ulnlng Co., Utah 

io Copper Co., New Mexico 

.mhian Mini ration Co., Ltd 

6 Iron Co 

Consolidated Gold Fields of New Zealand. Ltd 

rnwall Tailings Co., Ltd 

Crown Min.*, Ltd. Hand 

Davla-Daly Copper Co., Montana 

tor-Jack Pot Mining Co.. Colorado 

i lome Mines Co., Ltd, Ontario 

Dominion Steel Corporation. Ontario 

English Crown Spelter Co., Ltd 

Fi-st National Copper Co 

eral Petroleum Co.. California 

. ol.lfleld Consolidated Mines Co.. Nevada 

Goldri<-i<i Merger Mines Co., .Wvada 

inby Consolidated Mining. Smelting & Powi 

British Columbia 815, 

Granville Mining Co., Ltd 

,t Boulder Perseverance. Western Australia 

Great Boulder Proprietary Gold Mlnea, Ltd 

Croat King. ill Consolidated, Ltd.. Western Australia .. 

Hampden Cloncurry Copper Mines, Ltd 

Hudson Bay Mines Co., Ontario 

Inspiration Consolidated Copper Co 

Internationa] Nickel Co 

Jerry Johnson Gold Mining Co., Colorado 



Page. 
581 

861 
889 

37 
777 
466 
1013 
163 
535 
310 
660 
858 
236 
581 
707 
778 
736 



Jim Butler Tonopah Mining Co. 

Jumbo Extension Mining Co., Goldilehl. Nevada. 



Kerr Lake Mining Co. 

Kvshtini Corporation. Ltd.. Siberia 

Lake View Ac Oroya Exploration. Ltd 

Lake View &: Star. Ltd.. Western Australia 

Lueky Tlger-Comblnatlon Gold Mining Co 

Mascot Copper Co., Dos Cabezoa, Arizona 

Miami Coppei Co., Arizona 

Montana Power Co., Montana 

,i i.v.ii Mining A Railway Co., Ltd 

Mount Morgan < loll Mining Co., Ltd., Australia 

Nevada Consolidated Copper Co 271, 

Nevada Wonder Mining Co 

New York A Honduras Rosario Mining Co., Honduras.. 

North Broken Hill. Ltd.. New South Wales 

North Butte Mining Co., Montana 232, 

Old i I ".. Michigan 

( >ri ntal I Mining Co., Korea 

Oroya Links. Ltd.. Western Australia 81, 

Orsic Goldnelds, Ltd., Russia 

o Preto Gold Mlnea, Ltd.. Brazil 

Progress Mines of New Zealand. Ltd 466. 

Queen of tin- Hills mine, Meekatharra, Western Aus- 
tralia 

Hand Mines. Ltd 

Ray Consolidated Copper Co.. Arizona 269, 

Robinson Gold Mining Co., Ltd.. Rand 

Roolberg Minerals Development Co.. Ltd., Transvaal.. 

St i . Lid.. Brazil 

Santa Qertrudls Co., Lid., Mexico 426. 782. 

i Co.. Arizona 269, '.' < '■'. 

Silver King Coalition Mines Co.. Utah 

sis- mines, Urals 

Snowstorm Mining Co.. Idaho 

nlng Co., Utah 

Stewart Mining Co., Idaho 

Straits Trailing Co 

Superior & Boston Copper Co., Arizona 

TItantIr Qold Mining Co 

Tomboy Gold Mines Co., Ltd 

Tonopah Merger Mining Co 

I Mining Co 

Utah Copper Co 272, 

Vulcan lb-tinning Co 

Walhl Gold Mining Co., Ltd., New Zealand 

Walhl Grand .lunetion Gold Co.. Ltd.. New Zealand... 
Walhi-Paeroa Gold Extraction Co., Ltd., New Zealand.. 

Wealth of Nations, New Zealand 

Kootenay Power & Light Co.. British Columbia .. 

Wolverine Copper Co., Michigan 

Yuanrnl Gold Mines, Ltd., Western Australia ... 

Zinc Corporation, Ltd., New South Wales 315. 

Comparative drill efficiencies 

Compensation, workmen's — See Workmen's compensation. 

Compressed air. superheated and cancer treatment 

Compressor for Vindicator company 

Concentrati treatment costs at the Tread well cvanlde plant 

W. P. Lass. . . . 

Concentration by flotation Editorial.... 

Wet. zinc recovery 

Concentrator. Pan motion 

Slime. Anaconda 

Concerning copper quotations Editorial.... 

Concrete. California production 

Head-frame C. T. Jackson.... 

Wet and te it conveyors 

Congress and American Institute of Mining Engineers.... 

Editorial. . . . 
Congress Consolidated Mining Co., California, Incorporated 

Conlagaa Mines. Ltd.. Cobalt, Ontario 159. 660. 

Connecticut, mineral production 

Connecticut Zinc Corporation Incorporated 

Connor, f I. Kalgoorlle geologv. . . . 

, Mining Co.. Montana. No. 3 dredge accident 

Consolidated California-Nevada Co 

Consolidated Chlorlnatlon Works. Georgia 

Consolidated Coppermlnes Co.. Klv, Nevada 

Consolidated Gold Fields of New Zealand, Ltd.. South 

Island. New Zealand, company report 

ConsoU i Fields of South Africa acid mine water. 

Tronn Corporation. California, and potash production .. 

Consolidated Langlaagte Mines. Ltd.. Rand 

Consolidated Mines of New Zealand 



707 

614 

236 

163 

81 

660 

81 

81 

:,ii3 

:;in 

572 
.'-'4 
706 
706 
SI 
861 
534 



314 
732 
901 
581 



976 

663 

614 

19! 
614 

706 
307 
820 

:: 

:;: 
iimi 

1006 
159 
224 
236 

1010 
350 
:•::. 
973 
267 
706 
706 
273 
779 
826 
163 
275 
782 
614 
933 
271 

7H7 
876 

340 



960 
586 
310 
468 
238 
509 
647 
99 
84 

169 
230 
702 
705 
27 
493 

927 
954 
121 

466 

Hon 

974 
112 
114 



■ i Mining 4i Smelting Co. of Canada, Ltd.. Trail. 

lumbla 346. 426. 6S9. 1010 

lid.it. ,l Mining & Smelting Co. and Canadian Gobi 

Fields, Ltd 161 

■il Co., California 

i, late, i Power & Light Co 22:: 

: Virginia Mining Co., Nevada 659, B95 

Continuous decantatlon at the Porcupine Crown Mines.... 

Maurice Summerhayes. . . . 88 
tatlon. New Reliance mill practice with particular 

reference to Jesse Simmons. . . . 722 

Contraband of war :'-' I 

rters, basi-:-lined 

Copper, Alaska production 820 

And bismuth separation, Thum process 

And German market Editorial .... 509 

Arizona production 7 1 

Ann Hirseh & Sohn's annual report 120 

Kornla production 349,501. 929 

da production 689 

Colorado production 231 

Depo- idary enrichment laboratory study 

Editorial 433 

Eastern states production 88 

Export problem and England ....530. 615, 731. 772. ^27. 

926. 969. 1012 

liitto Editorial 543.829. 939 

Exports 691. S27. ^'.t 

Ditto Editorial 830 

German Southwest Africa exports 299 

i :, t many, supply and war Editorial. . . . 981 

Idaho oroductlon 231 

.lusperold, Nevada. Ely district 1001 

Lake Superior district industry 380 

Market and war 347. 572 

Ditto Editorial 939 

Market, conditions of 420 

Market Improved : 969 

Market situation 926 

Market. Stabilization of the C. S. Burton.... 7fio 

Ditto L. Vogelstein 845 

Michigan occurrence 768 

Michigan production 705, 768, 816 

Mines. Lak, Superior district and European war 531 

Mines. Efficiency In Michigan 168 

Mining. Lake Superior, present and future — I 

Thomas T. Read.... S7l 

Montana production 30, 705, 768 

Nevada production 425 

New Mexico production 76 

New Zealand production 919 

Ontario production 117. 195, (63, 868 

i ires. Secondary sulphide enrichment of, with special 

reference to mlscroscoplc study. Austin F. Rogers 680 

Peru exports Editorial ... 

Peru production 7:o 

- 34. SO, 120. 161. 197. 

19S. 236, 271. 313. 353. 387. 388. -I . 

622. 662, 704, 739. Tin. 781. 826. 860. 898. 899. 934, 978, 1012 

Prices, Future of Editorial.... 203 

Production, monthly 121 

Queensland production 961 

'."notations. Concerning Editorial ... .509. 788 

tlve natural and commercial scarcity of the metals 

Edwin C. Eckel 182 

Silver alloy 188 

Smelting In Canada 6S9 

Stocks surplus 662 

Surplus 70 1 

Texas production 819 

1". S. mines and export trade 154 

t\ s. mining and war 382 

TJ. S. production 120. 861. 924 

Utah production 705 

Washington production 77 

Western Australia production 381 

World production 120 

Wyoming production 117 

i Giant mine. Arizona, and United Verde Copper Co.. 534 

Ha ml bonk' publication 890 

King mine. Arizona 71 

King Mining & Smelting Co.. Idaho 1 r, s 

Copper King, Utah 578 

Copper Producers' Association monthly statements 1002 

so 



loos 
269 
454 
617 
501 

92S 



Report 
Copper Queen Consolidated Mining Co.. Blsbee. Arizona.. 

121. 313. : ; I 865 

Douglas smelter 

Hoists 

Safety 

Smelter 

Opper Range Consolidated Mining Co.. Painesdale. Michi- 
gan 68. 121. 232. 26S. 418. 576. 894, 

Copper Co.. Ltd.. Cordoba. Seville. Spain 121 

Corinthian North Gold Mines. Ltd.. Western Australia .... 697 

Cornfield Mining Co.. Miami. Oklahoma 774. 92S 

Cornish tin mines and war 419 

Cornwall Tailings Co., Ltd.. company report 1013 

Cortex Mining & Reduction Co., Nevada 975 

Costa Rica. Abangarez Gold Fields Co 77. 70S 

Imports and exports 

Mineral resources r9fj 

Costs: 

Alaska Juneau Gold Mining Co. 

Alaska Tread we II Gold Mining Co 15 2. 

Alaska Treadwell cvanlde plant, concentrate treatment 

"W. P. Lass. . . . 
Anaconda Copper Mining Co Editorial 



1.-." 



960 

203 



Arizona Copper Co. smelter L':': 

Associated Gold Mines of Western Australia. Ltd 315 

Wsmarrk Mining Co.. South Dakota 663 

Blackwater Mines, Ltd.. New Zealand 13 ' t 

P.rlseis Tin & General Mining Co.. Ltd 237. 2411 

Rroken Hill Proprietary Block 10 Co.. Ltd 37 

Broken Hill South Silver Mining Co 5K1 

Butte & Superior Copper Co.. Ltd 310. Sfii 

Ionia Mining Co., Tdaho 



V.. I 109 



MINING I'KI -s.s 



. 






Di in rep 



IliK" 

I.ll 









mill 



..1(3. 



-U 



Hull 



Ku-t Africa 

I . • \x . 

J. F. U.TtlllllK. . 

1:1 Tlgre Mining Co.. Bonoi 

Gm maktni ind 

■ hum -di tiling 

Ildaled MiiiImk ''•' Jl. 

■•I. 857, 
iii.iiit.v Consolidated Mining. Smelting .v Powei ■ 

Great Boulder P e. Western Australia 

il Boulder Proprietary Qold Mines, Ltd., \^ 

\ us! rail tt 

t Flngmll Consolidated, Ltd.. Western Australia, nil. 

Hammer-mill operation. Republic, Washington 

Holllnger Qold Mines, Ltd., Porcupine' Ill, si), 

inn Hutler Tonopali Mining Co 

Jumbo Extension Mining Co., Goldfleld, Nevada. .. .110, 

is 

Lake Superior district strike, rnllltla 

Lake View .v star. Ltd., Western Australia, grinding 

l.in Editorial. . . . 

Star mine, Yukon 

Lonels Reel Gold Mining Co.. Ltd.. food 

Lower Burma, mining 

Lucky TIffar-Comblnatlon Qold Mining Co 

Manganese production, Brazil 

Miami Copper Co 

Ditto Editorial 

Montana Tonopah Mines Co., Nevada 

■fount Lyell Mining & Railway Co.. Ltd 

Mount Morgan Gold Mining Co.. Ltd 314. 

Nclll Jig 

Nevada Consolidated Copper Co Editorial.... 

Nevada Hills Mining Co 

N--\ .i.l:. Wonder Mining Co 

New Moddcrfonteln Gold Mining Co.. Ltd.. Rand 

New York & Honduras Rosarto Mining Co., Ilmuluras .. 

North Star Mines Co., Grass Valley, California 544. 

Operating, at mines near Reefton. New Zealand 

Oriental ConsolUlut. ,1 Mining Co., Korea 

Oroya Black Rangfe Western Australia 

Oroya Links. Ltd.. Kalgoorlle. "Western Australia ....81, 

142, 
Plymouth Consolidated Gold Mines, Ltd., California... 

Porcupine Crown Mines Co.. Ltd 9L 

Progress Mines. Ltd.. New Zealand 

Rap, I Mines. Ltd 113, 

Ray Consolidated Copper Co 

Rock Island Coal Mining Co.. Oklahoma 

Rooiberg Minerals Development Co.. Ltd.. Transvaal... 

Safety 1- lrst. Lake Superior district. Iron mines 

St. John del Rey Mining Co., Ltd 

Sand tilling on Rand 

San Poll mill. Republic, Washington 

Santa Gertrudls Co., Ltd 

Shamva Mines. Ltd., Rhodesia 

Shannon Copper Co., Arizona 973 

Sliver King Coalition Mines Co., Utah .' 

silver King mine. Yukon 

Simmer & Jack Proprietary, Transvaal 

Sintering ore processes 

Smelting silver-lead ores, and prices... L. S. Austin...! 

Sons of Gwalla, Ltd.. "Western Australia 

Steam stamping in gold mines 

Tanganyika copper mines 

Transvaal 552, 

Tube-mill relinlng 

Utah Copper Co 

Ditto Editorial 

\ an Ryn Deep. Rand 

Walhl Gold Mining Co.. Ltd., New Zealand 

Walhi Grand Junction. Ltd.. New Zealand 212 

\\ ealth of Nations. New Zealand 

Workmen's compensation Insurance in California 

_ , „ . Editorial 

Yuanml Gold Mines, Ltd 

Yukon Gold Co 

Cottrell fume apparatus, Selby Smelting & Lead Co 

Crackerjack claims. Ketchikan district, Alaska 

Craigglemore mine. Western Australia 

Crank-shaft. Thermit weld of broken 

Crawhal] mine. Fields M. & M. Co.. Wisconsin 

Crawl girders in a battery-house 

Cresson Consolidated Gold Mining & Milling Co., Colorado. 

1ST, 

Accidents 

Creston-Colorado mine. Mexico. Mines Company of America 
Cripple Creek Cyanide Milling & Mining Co., Colorado 658, 
Cro'asdale, Stuart . . . .Leaching experiments on Ajo ores, I, 

II. III.. . .209. 252, 
Croesus Gold Mining & Milling Co., Alleghany. California. . 

Crown mine. New Zealand 

Crown Mines, Ltd.. Rand 

Company report 

Crown Point, Idaho 

Crown Point-Eelcher, Nevada, fire 659, 

Crown Reserve Mining Co., Ltd.. Cobalt. Ontario ..159, 386. 
421, 458. 572. 622, 702. 819, 854, 891. 

Crude methods of disposing of cyanide slag 

Arthur Feust. . . . 
Cuba, imports and exports 



345 

• 

180 

1 II 

l.. i 

1008 
614 

854 

tea 

118 

195 

11.'. 
,:i a 

no 

ISO 

81 
71" I 
534 
203 
s::: 

II 
340 
S4 I 

201 

30 
901 
96] 
581 
551 
526 
663 
995 

614 

878 

92 
614 

307 
8211 
76S 
782 
60S 
37 

Mil 
437 
782 
919 
1006 
159 
537 
901 
378 
170 
972 
514 
487 
910 
255 
779 
203 
112 
163 
260 
614 

42 
995 
568 
949 

12 
155 
594 
457 
729 

974 
735 
419 
856 

291 
269 

1003 
228 
163 
350 

1009 

1004 

142 
798 



Practice 

Practice, 
Pracl ice, 



,i 

i dltoi , 
Culllnan, K i 
Cumin 
Cunningham, Noel Milling in oyanldf 

■ 
Cushlni ' ' ■• 1 1 

Milium A- • ■ hi, Dakota 

Cyanltlatlon at Shatter, Ten 

Kunctl >t lead salts In . ' - II Cli 

> "t i -ii.i Gilpin County sulphides 

Solution « ml In \ w Allen 

I iltto B. M Hamilton 

SlUlphO-l vanl.l.s ill Hal al I: 

Titration results In A. YV All 

i lla, tailing 

Cyanlae ami cyanlte 

Bullion, iu ittls 

Bullion, matte ..II li>|> 

Bullli a. in.' it-- i emoval 

•' in s. r. s an. i editorial.. 

uniptlon forecasts 

Determination 

Germany, ami beet sugar residue 

Methods "f inumifaeture I I 

Milling In A. W. All. | 

i dito Noel Cunnlnghaj 

Now available from Germany BdltOI -''II 

Philippine Islands 

' til fluxes I 1 r. 

Practice, graphite In ores 60S 

Practice low bas.--in.-tai content bullion 

Practlci Methods of taking mill-head samples........ 

Lloyd Robey 

Meyer A Charlton mine. Rand 

DO! OUS mineral medium 

Retnohl 'rapid eyanidlng apparatus' 

silver and gold solvent 

Practice, Uwarra mill Andrew Walz.. . . !'-l 

Practice v. ilotntlon Editorial. 168 

Price 118, 7M 

situation Ml, 662, mil. B26, 820 

Slag. Crude method of disposing of Arthur ETeuSt. . . 142 

Supply Editorial. . . .381, 626 

I". S. condition 

Ditto Editorial.. 

I ". s supply 27 1 

Cvanldlng tailing in the Willow Creek district. Alaska.... 

J. T. Terry. Jr 989 

• Titration results and solution control in 

Harai R. Layng. . . . 606 

Cyanlte and cyanide 815 

Cyanogen. In coal gas s I 7 

Czar mine. Bisbee, Arizona, top slicing 151 



Dakota Continental Copper Co.. work suspended 228 

Daly-Judge Mining Co., Park Cltv, Utah 26, 77. 340. 

351. 463. 504. 577, 779, S24, 10111 

Daly Mining Co.. Utah nil" 

Dalv West Mining Co., Park City. Utah.. 310, 370. 463, 824, HUH 

New mill 17ii 

Dan Creek Mining Co., Alaska 226 

Darling Mining Co.. Texas 1010 

Darlington. Thomas Menace of mosquitoes and what 

to do about it 334 

Darrow tailing treatment at Bunker Hill 

Frank Lawrance.... 918 
Davenport-Independent Mining & Leasing Co., Douglas. 

Arizona 38S 

Davis-Daly Copper Co., Montana 2::.'. 823 

Company report 535 

Davis lease, E. L., Tlntic, Utah 117 

Day-Bristol Mining Co.. Ploche. Nevada 484 

Day Dawn P. C. Gold Mines. Ltd.. Queensland, Australia. . . 25 
Deadwood Business Club, South Dakota, Heidelberg 
property — See Heidelberg. 

Deadwood Standard mine. South Dakota 852 

Dease Creek syndicate and Boulder Creek Mining Co.. 

Alaska 69 

Deatli rate. Rand and Panama canal Editorial.... 168 

Decisions, mining 39, 123. 164. 313, 428. 507, 623. 

784, S62. 936 

Deebook Dredging, Ltd 16 

Deister Machine Co., double-deck sand table 1014 

New products 40 

Deitrlek Concession, Nicaragua, cancelled . . . .Editorial. . . . 982 

de la Marliere, L. C Handling boulders at Andrada ... . 761 

Del Mar. Algernon ... .Steam stamps from the gold miner's 

point of view 513, 963 

Dennl3, Clifford J., and flotation on quicks'lver ores 

Editorial 5S5 

Denver Engineering Works. Richards pulsator riffle 316 

Denver Fire Clay Co., laboratory roaster 786 

Low pressure oil forge 584 

Deposition. Ore, in and near intrusive rocks by meteoric 

waters Andrew C. Lawson .... 600 

Design of the Plymouth mill Gelasio Caetanl. . . . 670 

Ditto J. Parke Channlng, J. H. Lewis. ... 846 

Detinning, England, industry 653 

Detroit Copper Mining Co., Morenci, Arizona ....121, 313, 

::ix. 855 

Developing foreign trade Editorial. . . . 278 

Development o'f gold mining in the Philippines 

C. M. Eye 2S7 

Developments of the Alaska Gold Mines Co 

E. E. Hurja 103 

Dewey, Frederic P Platinum assay. ... 20 

Dexter mine. Cripple Creek. Colorado 75 

Dexter White Caps Mining Co., Nevada 737 

Diamond, Brazil production 793 

British Guiana production 650 

German Southwest Africa exports 298 



Ill 



MINING PRESS 



Vol. 109 



Page. 

Diamond. Origin of ■• *»» 

Producers conference and output Editorial.... 167 

South Africa mining 113, 952 

Union of South Africa Industry Editorial S»I 

ond-drllllng, Alp, Arizona, test* 4io 

Dlamon k Butte Reorganized Mining Co., Nevada bl9 

Dlamondfleld Mining & Mlllng Co., Nevada 78 

Diaphragm 223 

• ngln.. hiillt In America. Largest 66b 

Engine, cost of operation 815 

DlfTusi lepOBltS Andrew C. l.a»'S"li.... 20 

Dlngman well, Calgary. Alljerta. Canada 191, 273 

• '0» 

California potash Whitman Symmcs. .. . 883 

I Valuation of dredging ground. .. . 962 

... Joseph, boiler graphite 902 

.lack Pol Mining Co., Cripple creek. Colorado .... 822 

ipany report 310 

Alaska Editorial 239 

Dolbear Samuel H. . Potash and the Geological Survey. . . . 883 

Dolcoath tin mine, Cornwall 682 

Lake .Mining* Milling Co.. Ontario 428, 660, 7:>3. 738 

Dome Mines. Ltd., Porcupine, Ontario ...117. 169, 818, 199. 

898, 703. 733. So4. 858, 891. 1004. 1010 

Mill treatment results 19 

Dome Mining & Reduction Co.. Bullion, Nevada 736 

Dominion Coal Co.. Canada 971 

Dominion Steel corporation, Ontario 68, 121 

Company report B68 

Double-deck Deleter tallies mi i 

olldated Mining Co., silver City, Utah 117 

Draper, i» Rand banket, ESorwood replies to 

discussion .... 376 

Dredge. American, for foreign countries ....Editorial.... 432 

And wlnchman'a skill 108 

Construction In Portuguese East Africa 

Charles Janin 177 

anal 300 

Placer mining. Building with electric nower plant In 

Portugal H. G. Peake 

and drill tests Editorial.... 829 

Toronto, Ontario, harbor sand 300 

Dredging and hydraullcklng In Victoria 923 

Editorial.... 826 

in of Jigs to lames w, Mel 11. ... 839 

Ditto Editorial. . . . 903 

Bold, Philippine [stands 670 

Examination of Thomas A. Craves.... 991 

I : round. Valuation of James T. Dixon. .. . 

Ditto II. x. Herrlek.... 692 

• C. s. rJerzlg.... 662 

Ditto u J. H.ihl 403 

Ditto R. c. Jennings... B27 

Donald Bteel.... 846 

Ditto E. Bryant Thornhlll... 186 

Klondike district (64 

Ot gold In Charles Janin.... 717 

ovary v. drilling Editorial... . 7m 

Russia :i7i 

Victoria, Australia 220. 529 

Vukon Gold ''■■ r.r.s 

Drill efficiencies, Comparative S7fi 

Leyner gg« 

New .;:' i 

Ir cost. LOW, on the Gogebic range 

.1. F. Berteling. . . . 599 

Rigs, Autotractlon St 3"R 

Sullivan -ni'-.'i.r rotator 937 

lirllllng contests Editorial... 85 

ilishee. Arizona 114 

Contests, Cripple Creek. Colorado 115 

Contests, Ely, Nevada lir, 

i da 1 1 r, 

sis. Sonora, California 114 

Idaho 115 

Machine, efficiency Thomas M. Bains. Jr.'.. 

■ ami dredge recovery Editorial.... 829 

v, dred Editorial . . 710 

Ditto Charles Janin.... 717 

Driving the Roosac tunnel and the lesson it taughl 

p B McDonald 559 

Drumlummon mine. Montana 894 

Drummnnd Fraction p^ine. Cobalt, Ontario 121. 499 

old mine. California 574 

. William Lofland. death of 661 

- Zinc A- Lead Co.. Missouri 576 

il < '. Esl in ore 412 

i t he Aahio apan 13 

Rand 49 

i Indies coal production 328 

i :,,].! I, reduction 

Petroleum production 93n 

Tin production 328 

Guiana, quartz mining In 810 

■ Sweeney Mining Co., California 893 

•Heberleln sintering processes 378 

i ' S. Imports 567 

iiv and war Pdltorlal. . . . 513 

V. S i Editorial.... 543 

ITnlversal Concentrator Mi- lire 463 

is fuel 886 

olldaated, Korea 729 

E 

e Bell Mining Co., Bingham Utah . , H7. 159. 
385. 620, 660, 77! 

i ni Co, Mexli o, fire. . 1 "" 1 

Baltic \rthur S 'Minerals of California' ... . 114 

^periment lames A. Fleming.... 148 

.us. Rand 149. 964 

Copper Mining Co.. Butte, Montana ...121, 208. 

266. 461, lOl 

And North Butte 1002 

Ei Helena, Montana, lead smelter 4i>4 



East Rand Proprietary Mines 72 

Sand Ulllng J" 4 

East Tlntic Development mine, Utah 11" 

Eastern Oregon Light & Power Co. v. Highland Gold 

Mines Co 73 ' 

Eastern Star Mining Co.. Nevada 861, 50.1 

Echo Gold Mining Co.. South Dakota 8o3 

Eckel Edwin C Relative natural and commercial 

iv of the metals 182 

Economical sliming In grinding pans.M. G. F. Sohnleln 692 

Ecuador, Import*, and exports i9L 

Mineral resources '»» 

Bdeleanu. petroleum refining process 964 

Eden Mining Co. In Nicaragua • "32 

Edna May mine. Westonla. Western Australia 24. 381. ^ 

Efficiency engineering Editorial 625 

In Michigan copper mines ;.v,,Y, : ■ y l?>. 

Of the burro William A. Burr 521 

Egypt, phosphate deposits Editorial 431 

S6 Mining Co.. New Mexico • • ■ 100» 

Eldorado Banket Gold Mining Co.. Ltd.. Rhodesia . .i2. 265. 9o9 

Eleanor Mining Co.. Inc.. California 9,4 

Electric hoist. First motion ■ • • • • ■ ■ • ■ • • • ■ • • • ■ ■ -]90 

Hoists In the Cleveland-Cliff mines.. F. E. Stanford... 41b 

Incandescent lamps in gaseous mines ............... 63J 

Lighting, half-watt nltro lamps Editorial.... 86 

Power at Homestake Jesse Simmons 3,4 

Power. Germany '°| 

Power v. mules in coal mines ' £5 

Shock, artificial respiration '»; 

Shock, first-aid , ,dl 

Smelting of Iron ore. Fluorspar In ............ .. 

Robert M. Keeney. . . . 836 

Winch, new : i!; 



73 
626 



Work In Australia 

Electrical precipitation. Progress of Editorial 

Electricity, Pennsylvania anthracite coal mines 6ol 

El Favor Mining Co.. Jalisco. Mexico 69a 

Employees killed ' ^ 

Eliminating the mosquito 



Elkton Consolidated Mining & Milling Co.. C r , , P nl, *. r, ''; , : , 5' „,, 

Colorado I 5 "- 35<) . 5S4 . ».il 

Ellamar Mining Co.. Alaska ••• J«J 

Elm Orlu Mining Co., Butte, Montana ....... .110. 461 

v. Butte & Sttpperlor i. 5 , 4 ,',„ 1J ,'', " ' - , 1 

Ores, Flotation of Editorial.... 644 

Elmore copper plant. Sulltjelma. Norway ';-- 

El Oro Dredging Co.. Oroville. California 1006 

El Oro Mining & Milling Co.. Elkton. Colorado 618, 668 

El Oro Mining &- Railway Co.. Mexico '"I 580, 178 

El Paso Consolidated Gold Mining Co.. Victor, Colorado.... ._. 

El Ravo mine. Mexico. Mines Company of America 419 

EI Tlgre Mining Co.. Sonora, Mexico, mill operations 212 

Civ Valley Mlnlns & Milling Co., Nevada 486 

Empire Copper Co.. Idaho • ■■■■ ■■ ■■■■ •••• ■ • -J J 

Empire Mines & Investment Co.. Grass Valley. California.. 821 

Mill. Oliver inters ^'";,""j ~«- 

Bmplre-Nevada copper Mining & Smelting Co.. Nevada .. 885 

Empire Zinc Co.. New M. xlco 533. ■,.-.. 819. 890 

Ennmcls. antimony in manufacture VfiilVnVlii 9S2 

End or the year ',:;•"■' Editorial.... B»z 

Engels Copper Mining Co., California ;■'.;'■ 

^Engineering and Mining Journal' and Mining an, Kn- 

glneering Wii.i. r opper quotations Editorial 509 

Engineering Congress. San Francisco. ^P^™, 1 ;;^.,, '' -V- 7s7 

Engineering, efflci- n. IWnV '''"'"' 

England and copper export situation ........6811, 616, 781, ^ 

Ditto Editorial... ".648! 829! 989 

Bank of. gold reserves Editorial 748 

Coalfield. German Interests in i'-J 

Cornish tin mining and war »^- 

Detlnnlng industry »•>;> 

Iron, galvanized, manufacture "» 

Kent coal areas -.-;' 

rordshlre pottery plants, lead poisoning ;■-■ 

Zinc smelting • °"j 

English crown spelter Co., Ltd., company report -■!<> 

Enrichment, secondary. Laboratory study <»,•■,■••_ ■ y r 64!) 

Ernestine Mining Co., New Mexico. .„ ... ... ■■•J*' s! '°. I* 32 . 

Eruption nl Mount Lassen William 1-1. Storms.... 148 

Roberts., death of ■ • . . • ■ ■ ;-;; 

Estimating arsenic in ores Basil G. Dunstan .... 412 

:, Hill Mining Co.. Eureka. I'tah ..117, 895 

rials Editorial 202 

War --S, ■' \\ ir. -„- 

Evans, James Porter, death of JO" 

Evening star No. 5 mine. L.adville. Colorado explosion .. 3nU 

Evergreen Consolidated and Dewey claims. Idaho ... 30 

Inatlon of pi nd Thomas A. Graves 99i 

Experimental .1. velopmcnt of the Hall process ...... 

Jam.s Y\ Neill .... '.»-■• 

Ditto H. F. Wlerum.... 518 

Exploration hill in House ■ °JU 

Exploration Co.. Ltd.. London, in Mexico 504 

Expli sii.n test at the experimental mine 

George S. Rice. L. M. Jones. ... 877 

Explosions, grain mills, t" S ;|qc 

Explosives, Australasia imports ^6 

Carbide lamp and J*;? 

'Don'ts' in handling '»» 

Dynamite cases as fuel ;|J 

Fulminate for caps and quicksilver [JJ 

, liandllng and use of 441 

Gun-cotton ir° 

Manufactured In V. s. in mis 679 

Eye C M .Development of gold milling in the Philippines 287 



Vol l"" 



MINING PRIISS 



II 






tur tilling i 

product*. d 

Perm i 

Palalltle* U ■ Inflal mlBM Editorial 

tarries, u B Frano ,111.1 Great Britain 
v 
i Mining & Smelting • '•■ ^ American Smelting a- 
Kenning Co 

Hit to Sl.lli. \ N..r man 

i..i Miii:.> Slut..... Haul, mini 

Tin exports 

Tin mining In B. J Viillentlnc. . 

improved Ulyaaea h. Hough..., 

Peldt, John Denton, death of 

ir. California production 

M.iin- production 

Fenian nunc. Western Australia 

Its 

Ferguson. James C II Steal roll shells 

m Copper Queen mine. Nevada 

Ferrelra Deep, Ltd.. Rand, .lust prevention 

r*erro*allo) s. V s,. mui k.t. .i 

oaanBaneae Edtiorlul. . . . 

An. I war 

Price 

Feuat Arthur ....Crude methods of disposing of cyanide 

slag. . . . 

Fidelity Gold Mining Co., Colorado 

Fields MlnliiK * Milling Co., Wisconsin 

New development 

Fife Coal Co., Scotland, 'wireless' telephone... 

Filter, Oliver, Operation In the Qlobe mill 

II. A. Morrison and H. O. Thomson.... 

•Flltroe' tile 

Financier! and mining Editorial .... 

First-aid content, Arizona, Blsbee 

. '.iit.st. Arizona. Phoenix 

. '..ntest. California. Jackson 

.'.•iiiest. California, San Francisco 

Contest, Nevada, Ely 

.'.•ntest, Nevada, Reno, mine rescue 

For gas and electric shock 

First National Copper Co., company report 

Fissure veins, True H. C. Burton.... 

W. Prince Catlin 

Flagstaff mines. Nevada 

Flaxle Mines Co.. Nevada 461, 

Fleming, James A Early leaching experiment.... 

Flint pebbles. U. S. Imports 

Flints, r. s. occurrence 

Florence-Goldfleld Mining Co.. Nevada 3S4. 576, 

Florida, phosphate production 

Flotation, Anaconda Editorial.... 

And the patent law Editorial. . . . 

1 >it to James M. Hyde. . . . 

And zinc recovery 

Application to gold ores John Bevan .... 

Minerals Separation, Ltd.. suits 

.Minerals Separation. Ltd., v. Miami Copper Co 

Of the Elm Orlu ores Editorial 

On quicksilver ores Editorial.... 

v. cyanide Editorial.... 

Flower. Richard C, career and capture 

Flue-dust smelting 

Flumes, timber 

Fluorspar In electric smelting of iron ore 

Robert M. Keeney.... 

I ' s. production 

Fluxes, cyanide practice 

Foote. Arthur B Improved cam for stamp-mills.... 

Foreign Trade Council Editorial. . . . 

Forest products, U. S 

Forge, low pressure oil 

Fortuna Mines Corporation, Fortuna mine, Arizona 

France, coal production 

European war, as seen In 

Iron production 

Modern Industrial chemistry Editorial.... 

Srtaelters 

South American trade 

St. el production 

Franklin, Jr., mine. Michigan 

Franklin Mining Co., Demmon. Michigan 

Taxes 

Freeman grinding pan Editorial. . . . 

Freight situation and American owned foreign boats 

Editorial. . . . 
Fremont Consolidated Mining Co.. Drytown. California . . 
Fri fi h Gulch Dredging Co., Breckenridge, Colorado ... 157. 

61S, 

Frontier, Pioneering in old countries Editorial .... 

Fry C. .1 Revision of the mining law. . . . 

Fuel. Natural gaseous Editorial.... 

Oil. I", S 

Fuller's earth. California production 

U. S. production Editorial.... 

Fulminate for caps, and quicksilver 

Fume litigation. Selby Smelter Commission report 

litigation, smelter. Selby Smelting & Lead Co 

Editorial. . . . 

Smelter, Utah decree Editorial.... 

Function of lead salts in cyanidation. ,G. H. Clevenger. . . . 
Furnace, bullion melting 

,r aber du Faur tilting 

Hegeler roasting 

Johnson electric zinc smelting at Keokuk. Iowa 

Editorial 

Reverberatory, and powdered coal Editorial.... 

Roasting, Matthiessen & Hegeler 

Zellweger roasting 

Fuse. Handling and trse of 

Future of copper prices Editorial.... 



1011 
iSS 

US 

■41 

Ml 

933 
111 

.:iv 
.;>_■ 
•,s,; 
809 
576 
II 
705 
lit 
379 
704 

141 

194 
817 

457 
1"S 

584 

:: 5 7 
359 
114 
855 
501 
:,7i 
116 
4 55 
731 
581 
452 
506 
778 
S57 
148 
409 
409 
932 
664 

586 
728 
340 
413 
732 
22S 
545 
585 
159 
69 4 
300 
ISO 

335 
135 
415 
955 
168 
924 
584 
699 
184 
54S 
1S4 
543 
354 
792 
184 
876 
232 
928 
318 

317 
502 

974 
587 

21 
S67 
9 64 
929 

S6 
729 
947 

939 
865 
635 
260 
300 
397 

239 
359 
477 
46 
444 
203 






il.iiki Oold MlnliiK ' 

in ,.i ..iini Hon 
Oannett, Hem v. death •■! 
i in. .in. i end i'i Ifonofl pi 

all. I .. i ■.. i I 
i;.iiii..t. ebraalve, i" B. production 

Garrison, i', Lynwood Beward Peninsula and it» 

i. limn* problema. . . . 

Qa* and first aid 

Ami ..ii i.md. California legislation, Washington. i> C 

111, 

Coal, cyanogen in 

Coal, manufacture 

Coal. Wldnes, England 

I n mines and effects 

Making coat, Belfast, Ireland 

Matural, California production ...501. 

Oltto Editorial 

Natural. Kansas production 

I'i It. Editorial 

Natural, map ,.f U. S. deposits 

Natural. Ohio production 

Natural, Oklahoma production Editorial... 

Natural, Pennsylvania production 

Natural, Texas production 

Natural, r 8, production 

Natural, West Virginia production Editorial.... 

Petroleum, and brine wells of Ssu-rhuan. china 

Thomas T. and M. Carleton Head. . . . 

Poisoning, artificial respiration 

Producer, Chapman 

I'll nips, Humphrey 

Gaseous fuel. Natural EdltorlHl. . . . 

.Mines, electric Incandescent lamps In 

Gnsollne locomotives and the health of miners 

O. P. Hood 585. 

Locomotives In mines and air depletion 

Gauf v. Apex mines, Rand 

Gaylord-Dante mine. Cripple Creek, Colorado 75, 231, 

423, 502, 575. 

Geldenhuls Deep. Ltd.. Hand, sand filling 

Gemini Mining Co., Eureka, Utah 

Gems, California production 

General Electric Co., new high-voltage oil switch 

General Filtration Co., Inc., porous mineral medium 

General Mining & Finance. Rand 

General Petroleum Co., California, company report 

Geological report on the Collbran Contact within the Sunn 

mining concession, Korea D. J. Higglns. . . . 

Geological Society of America, correspondentship elections 

Editorial. . . . 

Geologists. State Editorial 

Geology, Kalgoorlle J. L. Connor.... 

Study In applied C. A. Stewart.... 

George H. Crosby Mining Co., Arizona 

Georgia. Gold mining in Claud. Hafer. . . . 

Metal production 

Mineral production 

Gerber. H. C. Death of 

German Southwest Africa copper production 

Germany, Alsace-Lorraine, mining in 

And copper market Editorial. . . . 

And English coalfields 

Bank of, gold reserves Editorial.... 

Bills outside of Empire Editorial. . . . 

Copper production 

Copper supply and war Editorial .... 

Cyanide and beet sugar residue 

Cyanide now available from Editorial.... 

Dyes exported to U. S 

Dycstuffs Editorial 

East Prussia amber production 

Electric power 

Hydrogen 

Magdeburg potassium cyanide 

Petroleum production 

Platinum deposits of Germany's paleozoic 

P. Krusch (translated by F. Sommer Schmidt) .... 

Scientific management of industries. .H. N. Stronck.... 

Smelters 

South American trade 

Zinc production Editorial.... 

Gertie Mining Co.. Idaho 

Getting land for taxes in California 

Giant Mines, Ltd.. Rhodesia 336, 

Gila Canyon Copper Co., Chilito. Arizona 193, 

Giroux Consolidated Mines Co., Kimberly, Nevada, churn- 
drilling 

Glaciers. Alaska 

Glasgow & Western Exploration Co.. Utah. Montreal mine. 

Glencoe mine, Utah 

Globe and Mueller tube-mill liner 

Globe & Phoenix Gold Mining Co., Ltd., Rhodesia 72, 

336. 808, 

Globe Consolidated Mining Co., Dedrick. California, Oliver 

filters 

Ditto H. A. Morrison and H. G. Thomson .... 

Godiva mine. Utah 

Gogebic range, Michigan, Low drill-repair cost 

J. F. Berteling. . . . 
Gold, Alaska. Fairbanks district production 

Alaska, Iditarod, Innoko, and Ruby districts production 

Alaska production 590, 

Alaska. Seward Peninsula production 

And silver alloys 

And silver, Weighing minute spheres. .. .J. I. Blair.... 

Arizona production 

Australia production 

British Guiana production 377, 650, 

California production 349, 501, 

Central America, Salvador exports, and silver 

Colombia exports 

Colorado production 231, 

Dredging, Application of jigs to.... James W. Neill.... 

Ditto Editorial 



1135 

111 
10 

(07 
711 

111 

111 
III 

3«7 

9211 

705 

867 

664 
867 
664 
111 

Bit 

867 

.'.J'.i 
765 
398 
108 
867 
693 

592 
608 

7.': 

931 

801 
117 

929 
1 66 
357 
500 
707 

95 

710 
319 
193 

3 30 
667 
953 

38 
466 

4 64 
120 
451 
5119 
925 
743 
830 
120 
981 
729 
511 
567 
543 
924 
188 
188 
567 
935 

879 
618 
354 
792 
278 
76 
634 
959 
460 

454 

67 

660 

1010 

255 

959 

558 
554 
117 

599 
■122 
656 
820 
734 
188 
526 
74 
198 
707 
929 
648 
878 
705 
839 
903 



12 



MINING PRESS 



Vol. 109 



411 

513 
953 
249 
963 

884 



662 

717 

182 

743 
959 
971 



Pag*. 

Gold, Dredging. California Industry Editorial.... 201 

Dredging, Philippine Islands 570 

Dutch Bast Ini non 328 

Eastern statee production 38 

Exports Editorial 4 

. Malay States, Raub mine 842 

Bond luctlon 9jj5 

Ida; on • ■ -31 

on -*'•>■ 959 

London Imports 161 

Mctulllc, Auto-reductlon in the precipitation of 

Victor Lenher. 
.Miner's point of view. Steam stamps from i 

Algernon Del Mar. 

ng In Georgia Claud. Hafer. 

g on the Amur W. 

team stamps and Algernon !»♦*! Mar. 

I Mtto H. \V. llardlnge. 

Mongolia mining 410 

Montana production 30 

Nevada production 424 

New Mexico production 76 

New Zealand production. Auckland province 1003 

New Zealand production 198, 613, 919 

Nova Scotia 971 

' mtarlo. Porcupine mining and war 733 

■Miturlo production 31, 117. 463. 858 

treatment, simplification of.. Noel Cunningham.... 19 

^'on production 195. 705 

Ores and metalltcs 651 

t. Application of flotation to John Bevan . . . . 413 

Peru coinage standard 780 

Peru production 68 

Philippine Islands milling development ..C. M. Eye 287 

Queensland, Australia, production 605. 616, 961 

Hand production 626, 

Ditto Editorial . . . . 

Recovery In dredging Charles Janln .... 

Relative natural and commercial scarcity of the 

metals Edwin C. Eckel. . . . 

Reserves, Bank of England and Bank of German v 

Editorial 

Rhodesia production 72. 261, 459. 808. 

Russia mining 

Siberia production 144 

South Dakota, Black Hills production 

Texas production 819 

Transvaal production 72. 614. 1001 

Treatment with nitric acid 886 

U. S.. Eastern States production 110 

U. S. exports 580 

U. S. exports and Imports 934 

Ditto Editorial 239 

U. 8. production 861 

Utah production 70S 

Washington production 77 

West Africa production 217. Ml. 965 

Western Australia mining, men employed 815 

Western Australia production 25, 381. 499. 851. 972 

Western Australia production decline ....Editorial 667 

Wire and leaf 188 

World production 908, 1001 

Wyoming production 117 

Gold Bond Leasing & Development Co.. Colorado 30. 931 

Gold Bullion mine. Alaska 2 ■ 

Gold Chain Minlnc Co., Mammoth. Utah 117 

Gold Chief mlne\ Ploche. Nevada 3S5 162 485 

Gold Cup Mining Co. organized 157 

Gold Hill and Walter i ;. Newman 110 

i 111! & Iowa Minos Co.. Idaho 6i( 

r Mining & Smelting Co., Mullan. Idaho .... 350 

Gold Ring Mining CO., Alaska 264 

Gold King Mining i Creek, Colorado. .. .461. S:< I 

Gold-Platinum Mining Co., Nevada 976 

Gold Print*. • Mining ft Leasing Co.. Nevada 271 

Gold Road Mines Co.. Arizona 460 734 

Golden Center Mining Co., Grass Vallev. California .' 383 

Whiskey vein , S56 

Cycle Mining Co.. Cripple Creek. Colorado. . . .30. 75 
„ , , 860. 884, 123, 586, 575. 700. 735. 822 

Golden Eagle Mining Co., Alaska *>64 

Golden Horse-Shoe Estates, Ltd.. Western Austrlta . . . 2". 

„ ta „ 882. 498. 614. 697. 854, 

Golden Rev. Hdated Gold Mining & Milling Co.. 

Terry, South Dakota 462 702 

Hidden Fortune mill 

Nevada 30. 7ti 18*4 

886, 425. 686, 576. 701, 737, 857. 931. ions 

And Aurora Consolidated Mines Co .10 S7 \ui 

Company report 775 

Costs 590 

Gold field Merger Mines Co.. Nevada 

Company report 736 

Is Rhodesia n Development Co 265 

Goldschmtdts, de tinning in England 653 

Gore. Bancroft Labor crisis in Chile 363 

Government Gold Mining Areas (Modderfontein 1 Consol. 

Ltd., Rand 99, U 2. 731 

Qovei ed merchant ships Editorial. . . 3<»2 

Gow. ';. Aubrey Ore. ... 187 

Graham rheostat resistance Mock 149 

Grain mill explosions, I". S 964 

Grnnbv Consolidated Mining. Snwdtlng ft Power Co« Ltd 

British Columbia 110. 121, 233, 2fi*. 813 346 165 

fil7, 689, B96, 1010 

Anyox property :.•>:» 926 976 

Company report 615 :*" 

Tn Alaska 11, 2*jj 530 

Grnnbv Mining & Smelting Co.. .ToplLrt. Missouri. .208 232 654 

R. & H. concentrating plant , , , < :<r. 

•■ Lake smelter. Illinois , : •• r, 

Ditto E. H. Leslie 3*5 

ml Mining I in. Utah. ..117, 386 168 660 

Grand Gulch mine \ r izona 74 

Gran it i', Georgia production , 4 6fi 

Ireland production 

Washington production , 77 



972 



852 
112 



Page. 

Granite Gold Mining Co.. Alaska 264,601, 

Granite Gold Mining Co., Victor. Colorado, and Vindicator 

v. Teller county 168 

Granite Hill mine. Oregon 861 

Granville Mining Co., Ltd.. company report .". 

Graph! t< lal, Niagara Palls 

California prod tie t ion 929 

»n's boiler 902 

Electric furnaces and uses 188 

In ores and cyanide treatment 608 

U. S. Imports and production 

Graves. Thomas A. Examination of placer ground. . 

Great Boulder Perseverance Gold Mining Co.. Ltd.. com- 
pany report 614 

Great Boulder Proprietary Gold Mines, Ltd.. Kalgoorlle. 

"Western Australia 882 

Company report 

Cyanide consumption and quicksilver loss 

Victoria mines 854 

Great Britain, smelters 86 1 

South American trade • 792 

Great Cobar. Ltd.. Cobar. New South Wales 121 

Great FIngall Consolidated. Ltd., Western Australia 

Company report 1 63 

Contract work 697 

Costs 104 

Freeman grinding pan 318 

Great Northern Development Co.. Alaska 500 

Green Hill. Cleveland, Idaho 350 

Greene Cananea mine, Sonora. Mexico. 159. 208 

Gregorv. J. W Rand banket. Horwood reply to 

discussion. . . .766. Sll 

Grenfell failure. London 162 

Grier. Thomas Johnston, A pioneer mine manager, death 

of T25 

Death of Editorial.... 469 

Monument B62 

Will 696 

Grinding pan as a regrinder William S. Mann. . 

Pans Editorial. . 

Pans, Economical ^liming in ....M. G. F. Sohnlein.. 



963 
317 

692 

Gross & Dixon Gold Mining Co.. North Carolina 



Grothe. Albert, death of 164 

Guanajuato Consolidated Mining & Milling Co., Mexico.. 580 

Guatemala. Imports and exports 792 

Resources 797 

Gullachsen. B. C Hydraulic stowing in the gold mines 

of the Witwatersrand. . . . 801 

Gumaos Placer Co., Philippine Islands 570. 780 

Gun-cotton 729 

Gypsum. California production 929 

South Dakota production *53 

U. S. production 99 



Hafer, Claud Gold mining in Georgia. . . 963 

Ilaggin. James B., death of 4fi4 

rue, William, and W. D. Pagan North Star mine, 

Grass Valley. . . . 549 

Haiti. Imports and exports 792 

798 

Haley, C. S Plan for reviving hydraulic mining — I. II 

914. 943 

Ditto Prospecting on the Upper Magdalena. . . . 404 

Mall pr -ss Editorial. ... 512 

Ditto Howard F. Wlerum. . . . «92 

Process, Experimental development 

James W. Melll , . . 923 

Ditto Howard F. Wlerum 518 

Hamilton. K. M Solution control in cvanldation. . . . 145 

e1 Mining & Milling Co.. Mlddleton, Colorado .... 384 

Hammi-r drill. Sullivan 'DP-33* rotating 937 

Hampden Cloncurry Copper Mines,. Ltd.. Cloncurry. 

Queensland 121 

Company report 81 

Hanaoka mine. Japan Editorial.... 201 

Hancock Consolidated Mining Co., Hancock, Michigan. .232, 41S 

Handling and use of fuse . 444 

Boulders at Andrada L. C. de la Marllere. . . . 761 

Hanford Mining Co., Joplin, Milsourl 457 

Harding.-. H W Short tube-mills 218 

Ditto Steam stamps from a gold miners 

point of view. . 

Hardlnge hall-mills and cemented gravel... V. A. Stout.... 130 

Mills. Motors for driving 7 12 

Mills. Use n f herringbone gears to drive 758 

Harney Peak Tin Mining Co Editorial. ... 790 

Harrlmans and mining George E. Collins . 528 

Hasaml gold mine. Japan, closed 703 

Hatch. F. H Rand banket, Horwood replies to 

discussion 297. 337 

Hawaii and California lumber 924 

Hawkeve-Pluma mine. South Dakota 998 

Hayden, Stone & Co. and Butte-Duluth mine 92*. 969 

Ditto Editorial. ... 039 

Head-frame. Concrete C. T. Jackson.... 99 

Health of miners, Gasoline locomotives and 

O. P. Hood 586, 592 

Hecla Mining Co.. Burke. Idaho 350. 535 

Hecla Mining Co.. Chewelah. Washington £76 

Hector mine. Idaho 461 

Hedley Gold Mining Co.. British Columbia ..346. 347. 46 

: r roasting furnace 397 

Iberg Mining Co., South Dakota 463. 6'..".. 858 

Incorporated 112 

Heidelberg property, Dead wood Business Club. South 

Dakota Ill 

Helnze. F. A., and Gould litigation 652 

Death of 772. :*o 

Legal entanglement 11° 

Help the Belgians Editorial .... 709 

Henrietta or Big I mine, Tdaho 100S 

Hercules Mining Co.. Burke. Idaho 76. 350 

Hercules Powder Co.. Missouri drilling contest 619 

Hercules Powder Co., Utah 824 



Vol 109 



MINING PRhlSS 



l:t 



H N Valuation <>r dredaint ground ... 03 
gbone ffeera Use ■ •' t" «iti\ mllli 
Item it > ' B Valuation --f dredging ground 

South 1 takota . . . 46.1 
Hlgglna, 1 ' on lbs Cotlbran 

II 
•ntllatlon h mines of 1 

>ii|..i lor dlsl ' l< '■ 

too 1-lKl-t 

A i .Ill 

& Sohn. A run. annual OOppOI report 

HohL i* j. ..Valuation of .ir.dKiim ground. 1 



trie, First motion 

trie, in Cleveland -Cliffs mln«i . . r. 1: Stanford.. t tt; 

Little Tubk't 

Hoisting accidents in Waatorn Australia s;s 

Welfare work among mint workers.... 7*7 

Holland, Patrlek J., deatb of ill 

Holland, smelters 354 

Holllngar Gold Mines, Ltd., Tlmraons, Ontario.. 

*5S. 463. 673. 703. 73S. 77y. SI9. 864. 891. 333. 1010 

Mm bevel- geare 

Mill Treatment results, 

Holllng* i Reserve, Tlmmlns, Ontario 733 

Holmes, J A American Mining Congress, Phoenix, Ai I cona BOB 

Holmes, Robert, v. St Joseph Lead Co Editorial.... 981 

Rolt*Dern furnace BG 

Homcstukc MlnliiK Oft, Lead City, South Dakota ....11-'. 

IIS. ::*7. 267. 2:2. 168, 708, B4S, BBS, 178, 1010 

Christ mas dividend 1004 

Blectrtc power at J ease Simmons.... 374 

Bmployee'a aid fund 660 

Labor conditions Editorial 818 

New construction 852 

New manager 696 

Superintendent Biackstone Editorial. . . . 544 

Telephone system 196 

Wage Increase 938 

Honduras, Central America, gold production 955 

Imports and exports 792 

Mineral resources 797 

Mining and war BBS 

Mining companies 586 

Stiver production 955 

Honolulu Consolidated Oil Co., California 383 

Hood. O. P Gasoline locomotives and health of 

miners. . . . 592 

Hook, J. S. . .Rand banket, Horwood reply to discussion. . . . 186 

Hooke, A. W Juga estimates. . . . 414 

Hoosuc tunnel. Driving, and the lessons it taught 

P. B. McDonald 559 

Hopaloosa Prospecting Co., Missouri 928 

Horn Silver Mining Co 652 

May, \V D White Island sulphur deposit.... 913 

Horwood, C R Rand banket, replies to discussion.... 

- ■ also 'Rand* 186, 297. 337. 376. 413. 462, 766, 811, 996 

Hough, Ulysses B Improved ore feeder. ... 562 

Houghton, Douglass, Memorial to Editorial. ... 626 

Hon to make money though mining 591 

Hubbard, Harry J., death of 426 

l il-Elllott Copper Co., Alaska 776 

Hudson Ray Mines. Ltd.. Ontario Company report.... 660 

Huerta, passing of Editorial. ... 85 

Humphrey gas pumps 108 

Hungary, coal imports and production 212 

Iron production 552 

Huntington-Heberleln v. Dwight-Lloyd sintering processes 378 
Hurja, Emll Edward. .. Mining in the Far North: Cordova, 

Alaska 225 

Ditto Mining In the Far North: Developments of 

the Alaska Gold Mines Co 103 

Ditto Mining in the Far North: Juneau, Alaska.... 152 

Ditto. . .Mining in the Far North: Klondike, the Tread- 
gold placers, and outlying districts 848 

i ItttO Mining in the Far North: Koyukuk mining 

district 416 

Ditto Mining in the Far North: Mining revival in 

the Ketchikan district, Alaska 10 

Ditto Mining In the Far North: Operations of the 

Canadian-Klondyke Gold Mining Co., Ltd 769 

Ditto Mining in the Far North: Operations of 

Yukon Gold Co 568 

Ditto Mining in the Far North: Placer mining in 

the Fairbanks district 965 

Ditto Mining in the Far North: Seward and the 

Kenai peninsula 341 

Ditto Mining in the Far North: Skagway-White 

Horse mining district 609 

Ditto Mining in the Far North: Upper Yukon: 

Circle City, Eagle, and Woodchopper 887 

Ditto Mining in the Far North: Valdez and Prince 

William Sound 261 

Ditto. . .Mining in the Far North: Wrangell, Alaska. ... 69 

Huronian Belt Mining Co., Ontario 891 

Hutchings, James M„ Miner's Ten Commandments 

Editorial 317, 344 

Hyde, James M Flotation and the patent law. . . . 728 

Hydraulic mining. Plan for reviving — I. II 

C. S. Haley 914, 943 

Stowing in the gold mines of the Witwatersrand. . . . 

B. C. Gullachsen SOI 

Stowing of mine workings Editorial.... 791 

Hvdraulicking, Alaska 886 

And dredging in Victoria 923 

California Editorial 939 

Hvdrocvanic acid, determination 300 

Hvdro-Electric Power & Metallurgical Co., Tasmania J 9 

Hydrogen. Germany 188 

Hypotheek Mining & Milling Co.. Idaho 424, 856 






Ibex Mining Co., l.nu. Jonny mine ... 
Irluh> ol, Austrlu 

T< KM 

■ 

imtnti . 

i -i Alt n« dlsti I , . .•ii|.h',> oonteni 

■ 

Ddltoi 

Georgetown district, phoi 

Lead production 

Lemhi count) fair 

Macki ppi i deposits 

Map of 

M< tul production ,........!!.!!!!!!!! 

Mlnei Lion ........!!.!, 

Miners' picnic, Kellogg , , 

Mining <on.lttl«»n« 



Sawtooth quadi angle 
Mh er production 






South Mountain district 

Wallace 

Idaho-Continental ■'•> , Porl inn. Idaho 

Idaho Gold A Radium Mining Co,. Idaho, 

rdora mil Kilning Co. mortgage 

Illinois, Coal mine wash-houses 

Coal production 188, 

Coke production 

Mineral production , 

Petroleum production 

Portland cement production 

zinc statistics 

Imperial Reduction Co., California, cloudburst 

Impression of the Hand 

Improved cam for stamp-mills Arthur B. Foot...... 

* Ire Feeder Ulysses B. Hough. . . . 

Incn Mining Co., Peru, Santo Domingo mine 

Incnoro Mines Co., Bolivia 796. 

Mill, It. H. T. Kllianl 

Independence Mining Co.. Manitoba. Canada 

India. Bombay silver stocks 

British, coal production 

Burma ruby mines 

Gold production 25G, 

Kolar goldfleld, Persistence of ore. . . .T, A. Rlckard .... 

Lower Burma, Mining In the Tavoy district 

E. Maxwell-Lefroy. . . . 

Petroleum In 810, 

Tigers and wild pigs Editorial.... 

Indian reservations, mineral lands on Editorial.... 

Indiana, coal production 

Coke production 

Mineral production 

Petroleum production 36, 

Portland cement production 

Industrial Accident Commission. California — See California. 
I. W. W. and Goldfleld and Tonopah fires. ... Editorial ... . 

In Tonopah, Nevada Editorial.... 

Industrialism, a man and his job Editorial. . . . 

Industry of the Witwatersrand 

T. A. Rlckard — Editorial 

Infusorial earth, California production 

Ingalsbe. F. R Mining law — proposed revision .... 

Tngersoll-Rand Co. rivet-set retainer 430, 

Ingllston Consols mine, Western Australia 

Inspiration Consolidated Copper Co.. Miami, Arizona 

28, 114, 156, 420. 458, 652. 

And Keystone 

Company report 

Compressor and hoist house 

New Keystone ground for tunnel Editorial.... 

v. New Keystone Copper Co., right-of-way 

lnstituto Mexlcano de Minas y Metal urgia, Transactions 

published Editorial. . . . 

Insurance premium. Western Australia, Workers' Compen- 
sation Act 

Rates tumble Editorial. . . . 

International Acheson Graphite Co., Niagara Falls, graph 

Ite and culm 

International lead refinery. East Chicago 

International Nickel Co 352, 732, 772, 818. 

Company report 

Editorial 

International Smelting & Refining Co., Globe. Arizona... 

114. 156. 

And Anaconda Copper Mining Co 

International Steam Pump Co. and Power & Mining Ma- 
chinery Co 

Receivership Editorial. . . . 

Tnterstate-Callahan mine, Idaho 350. 658, 

Iowa, coal production 

Mineral production 

Portland cement production 

Towa-TIger Mining Co.. Colorado 

Ireland. Belfast, gas-making cost 

Mineral production 

Iron, Alsace-Lorraine production 

And steel, New Zealand industry 

California production 

Canada, mining and government bountry. .Editorial. .. . 

Canada, mining industry 

Cuba mines. Sanitation work at... Charles F. Rand.... 

France production 

Galvanized, England manufacture 

Hungary production 

Ireland production 

Lake Superior mines, caving system of mining 

J. Parke Channing. . . . 

"Lake Superior mines. "Ventilation In. Edwin Hlggins. . . . 

Michigan districts and. P. P. I. E 

Michigan. Mesabi range 

Michigan production 

Michigan shipments 

Minnesota production 

tvt ptv MpxIco production 

New Zealand deposits 



«7 
I 10 

SOI 

..;.n 

618 
618 

110 

818 

777 

618 
736 

778 

974 

1008 

B8B 

I CI 
10 

624 

■ 

314 
855 
1 II 
9GB 
BBS 
LSI 

920 

800 

B78 

1012 

17 
208 
959 
956 

448 

'.13 5 

125 

85 

38 

80 

768 

935 

38 

787 
126 
546 

241 
929 
100 
624 
382 

929 

1005 

81 

193 

865 

892 

667 

378 
941 

768 
415 

969 

81 

905 

889 
816 

110 
359 
894 

80 
4 50 

38 
461 
149 
552 
451 
806 
929 
585 
732 
213 
184 
486 
552 
552 

451 
367 



1001 
705 
975 
664 
775 
815 



14 



MINING PRESS 



Vol. 109 



664 
794 






Iron. I luctlon 117 ' " 

■ist price ■ •""• 

Fluorspar* 

phlll n province 859 

zit 

Pig, Colorado | i«? 

li-'VfiV 8^8 

in !"• «*• J 

■ Ion 

turai and commercial ot the 

Edwin C Eckel ... 

Pig. *". S. production - • • ■ ■ • • - -|-j 

Editorial. . . . 62a 

rketed JJ[* 

J"? 

Auction J°2 

U 366. 664. 861 

Virginia production 3 »3 

Iron A: Silver Mining Co., Lea ■■■ 420 

77, 

Iron Can Copper Co., Copper mil. Arizona 1S6, 776 

inder' 

Iron Mountain mine, Keswick, California 

lone flux, Queensland production 961 

lo. 75. 231 58. 931 

• Copper Co.. Houghton. Michigan 

192 

Italy, topper production 120 

■ oleum production 986 

Uth American trade 792 

Ivanhoc Goid Corporation, Ltd.. \Wst.-rn Australia 

•;i4. 697. 864, •>:- 



Jii< kling, D. C Mining in Utah 301 

Jackson, C. T Concrete head-frame. ... 

ion, Anton J., death of 738 

is, William, and scrap metallurgy Editorial.... 85 

Caradoc, death of 505 

Janin. Charles Dredge construction In Portuguese East 

Africa 177 

Ditto Recovery of gold In dredging.... 717 

Japan. Ashlo Copper Co., dust chambers at smelter 13 

Copper production 120 

Cyanide famine 826 

Hanaoka mine Editorial 201 

Hasaml gold mine closed 708 

Kano copper mine 196 

Nippon Oil Co 

Petroleum production 686. 935 

Smelting Editorial 359 

Tokyo, Talsho national exposition 

Warren D. Smith 490 

Zinc production Editorial. ... 167 

Jeffery 'Quad' truck 508 

Jennings, R. C Valuing placer ground.... 527 

Jerry Johnson Gold Mining Co.. Colorado, company report. 502 

Jig*. Application to Bold dredging James W. Nelll.... 839 

Application to gold dredging, James W. Nelll 

Editorial 903 

Jim Butler Tonopah Mining Co.. Tonopah 76, 116, 159, 

351, 385, 436, 608, 577, 659. 823. 860, 894. 932. 1009 

Company report 857 

v. West End. Nevada 619. 702, 932. 976, 1009 

Jim Fair mine, New Mexico 775 

Johnson. W Origin of the diamond.... 409 

Johnson electric zinc-smelting furnace at Keokuk. Iowa.. 

Editorial 239 

Jones, I* M- and George S. Rice Explosion test at the 

experimental mine 877 

Jones, Thomas D., and U. S. Reserve Board. . .Editorial. . . . 167 

Joplln district 232. 774. 857, 975. 1008 

District and Australian zinc ores Editorial.... 625 

District, ore market 113. 351. 384. 465. 654. 662 

District, ore market and European war 304 

District production 351, 701 B28 

District, strlp-plt zinc mining 305 

I rict. topographic map 619 

District, wet concentration 340 

District, zinc production 354 

District, zinc smelters and European war 530 

Josie mine. British Columbia 933 

Juatin property. Alaska 153, 892 

Nigeria l Tin & Power Co., Ltd., estimates 

A. W. Hooke 414 

Jumbo Extension Mining Co.. Goldfleld. Nevada. .. .76. 126 

461, ". 736. 823. $94. 526. 935. 976 

Company report 310 

Jumbo Mining Co.. Sulzer. Alaska 10. 69. 499 

Jupiter Mines. Ltd.. Ontario 738. 891 

Mine and M« Kinl.y-Darragh, Ontario ." 1004 



Kalgoorlie geology J. L. Connor 493 

Kalgoorlie & Boulder Firewood Co.. Beria Consols mine. 

Western Australia 385 

Lancefield mine 155 

Kalgoorlie & Boulder Mines Water Trust. Western Aus- 
tralia, water used *>f,n 

Knlgurll Gold Mines, l.td.. Western Australia 

Kampong Kaurantlng Tin Dredging Co.. Australia 17 

Kano copper mine, Japan 19R 

Kansas, coal production so 

Galena mining 

Gas. natural production » Editorial! . 867 

Mineral production 70" 

Missouri-Oklahoma district — See Joplln district " 

Northeastern oil and gas territory Editorial. Bfifi 

Petroleum production r;6 935 

Portland c« menl production . .' 3S 

Zinc statistics 114 



Katanga mines. South Africa Editorial.. 

; 1 r production ' -'" 

Kauri sum. New Zealand production 919 

uses , 816 

Kavtinaugh-Jo Dandy mine. Cripple Creek. Colorado 

76, 331, 1: : 

Keeney, Robert M Fluorspar In electric smelling or 

ore 335 

Kelly, David John, death of 

Kelvin-Sultana Copper Co.. Arizona 6.>. 

Kemp, J. F., ore deposition 604! 

K.nai-Alaska Gold Co 

Kenne'-ott Mines Co., Alaska) Bonanza ai 



Kennedy Extension Gold Mining Co. v. Argonaut Mining 
' ildH 



61 



- i J*. 2 S . 

Kennedy Mining & Milling Co.. California, First-aid 601 

Ington mine. Alaska 892 

Kentucky, coal production 248 

Coke production 

Minera i production 66 t 

Petroleum production :: ' ; . 986 

Kem Trading & Oil Co.. California 

Kerr lake, Cobalt, Ontario, draining 260 

Kerr Lake Mining Co.. Cobalt. Ontario 159, 42!. 199, 7": 

puny report 

gnaw Copper Co.. Man dan, Michigan 102, 418 

Keystone Copper Mining Co. and Inspiration Consolidated 

Copper Co 1005 

Kiaochou . Mining near 4 ~ « » 

Klllanl Incaoro mill. Bolivia. . 

Kilos into troy ounces 415 

King-posts in stamp-battery 149 

King's Asbestos. Rhodesia 72 

Kirov. K. B Report of committee on revision of 

mineral land laws 869 

Klrkland Lake mine. Ontario 696. 703 

Klondike gold production 463 

Knob Hill Co., Republic. Washington 

Knopf, Adolph, and ore deposition 604 

Ditto Platinum-gold lode deposition In southern 

Nevada 990 

Knox. Henry H Rand banket. Horwood reply to 

usslon 1S6 

Knox, Newton B Upper Yenesel valley and adjacent 

Mongolia 922 

Kclar. Persistence of ore at T. A. Rlckard. . . 

Kongsberg mines. Norwav 924 

Korea. Oriental Consolidated Mining Co 159. 233. 312, 

426. 537. 780. 977 

Ditto Editorial 625. 660. 

Oriental Consolidated dynamite 

Seoul Mining Co 77. 352, 426. 578. 779. 

Suan Mining Co.. Geological report on the Collbran con- 
tact D. F. Higgins.... 

Krusch. P., translated by F. Sommer Schmidt. . .Platinum 

deposits of Germany's paleozoic 

Kyshtlm Corporation, Ltd.. Kyshtim, Perm. Russia. 121. 739, 

Company report 2 2 4 



729 

977 

95 

772 



Labor as an Investment Editorial.... 

Ditto .• Fred H. Rindge. Jr 

Bureau of Safety 

Butte unions 

Colombia 

Cost. Portuguese East Africa, dredge construction 

Crisis In Chile Bancroft Gore.... 

Department of, and Bureau of Mines Editorial. . . . 

Mexico, and its peculiarities Max J. Welch.... 

Mexico, San Luis Potosi conditions 

Panama canal 

Safety, Bureau of Editorial. .. .277. 

Southern Rhodesia 

Unions, Butte, Montana 424. 

Ditto Editorial 360. 

Unions and liberty Editorial. . . . 

Unions' proposals in Western Australia 

Western Australia troubles 24. 155. 

Laboratory roaster 

Study of secondary enrichment Editorial.... 

Ditto C. F. Tolman. Jr 

Lady Harriet mine. Western Australia 

La Exposiclon Mining Co 

Lake Shore Engineering Works "Iron Finlander' 

Lake Superior copper miners and European war 

Copper region map 

District and labor agitation Editorial. . . . 

District, copper mining Industry 

District copper mining: present and future — I 

Thomas T. Read. . . . 

District Iron mines. Caving system of mining 

J. Parke Channlng.... 

District, iron mines, safety work cost 

District strike, cost of militia 

District. Ventilation in the iron mines of the 

Edwin Higgins. . . . 

District, war effects 

District writings Editorial 

Lake Superior institute of Mining Engineers mining meth- 
ods on Marquette range 

Lake View & Oroya Exploration, Ltd.. company report.. 
Lake View & Star. Ltd.. Western Australia 

Company report 

Lampa Mining Co.. Ltd., Santa Lucia. Puno. Peru 

Francis Church Lincoln. . . . 

Land for taxes In California. Getting 

Lane. Herbert Management of a country smelter.... 

Ditto Ore contracts and the smelter.... 

Lnnc-eloth, Jacob, death of 

Lnnglaagte Consolidated. Rand. v. Victoria Falls & Trans- 
vaal Power Co 

Lanyon-Starr Smelting Co.. Bartlesvllle. Oklahoma 

Large versus small stamps Editorial.... 

La Rose Consolidated Mines Co.. Cobalt. Ontnrio 

159. 190. 19fi. 267. 537. 573. 550, 702, 

In gold fields . . 



71 ! 
712 
4 21 

384 

■ms 

17S 

3 63 
360 
S97 
660 
768 
360 
459 
461 
431 
626 
881 
381 
7S6 
433 
6(9 
156 

1"02 
902 
531 
871 
167 
380 

871 

4 51 

fin* 

115 

3fi7 
418 
930 



7<o- 

706 

R ' H 
t lit 






v,,i 100 



MINING I'KLSS 



15 



1.44 lt,.«.- Kfttenslu 

Km* AntroM 






lie 






2111 

lit 
ii 

boo 

Bit 
10 

6U0 
It] 

ooe 

361 
260 
148 

291 

324 

74 

929 

Tor. 

38 

i'.i.s 
351 

SSU 

807 

664 

30 

426 

76 
l'ir. 
886 
188 

86 
529 



P 'tint. treatment coati ui ih« 

nglon 
l-i~i I' 

■! 

SOUtb Al.ull..i 
llStl Hi lli'lt. I tlVVI lllllls 

I. III. I ..ii-.. 

Edltoi 
lotatlon un.l the patent... Editorial.... 

Mn. ii 

Mlnli I inn commission 
Minn. i ; . 1 1 1 . . i . 

Mining, revision, .ni.1 Commlli Wines and Mining. 

Editorial ... 

Mining. Revision .,f w F, Collll 

1 int., Clarence K. Colvln. . . . 

Ditto C. J l''r.v 

inn.. r. it. Ingalsbe.... 

Ditto. ii. U Sheldon. . . . 

Mining, revision, Report of committee. .E, n Ktri.\. ... 

Mlnli m, Win k lor Edit oi 

Lawrance, Prank. .. .Darrow tailing treat m at Hunker 

Mill 

Lawson, Andrew C Diffusion --i on deposits.... 

Ditto isitlon m jm. I near Intrusive rocks 

meteoric waters 

Layng, Haral it Sulpho-cyanldes in cyanldatlon.... 

Ditto Titration results anil solution control in 

. yanloing 

i^. Calumei .v Hecla process Editorial. . . . 

Chlortdlslng, Mines Operation Co., Utah ". 

Experiment, Early lames A. Fleming 1 . . . . 

Experiments on AJo ores — I. II. Ill 

Stuart Croasdale. . . . 209, 262, 

Mines Operating Co„ Park City plant 

Lead, \ii"ii.i production 

California production 349, 

Colorado production -31. 

Eastern States production 

Idaho proiliictli.n 231, 

Joplln district production 

Market 

Missouri. Flat Ktvcr mines, and shoveling machine.... 

E. 11. Leslie 

Missouri production 

Montana production 

Nevada production 

N,\v Mexico production 

Oregon production 

Ores. Coeur d'Alene district, ami sulphur content 

Poisoning 

Ditto Editorial 

Poisoning, pottery Industries 

Prices 34. 35. 80. 120. 161. 197, 235, 274, 313. 353. 387, 

127. 151',. 465. 539. Sill. 5SU. 622, 662, 704, 739, 740, 

781, 826. 860. 898. 899. 934. 978. 1012 

Queensland production 961 

Relative natural and commercial scarcity of the metals 

Edwin C. Eckel 182 

Salts In cyanldatlon. Function of..G. H. Clevenger. . . . 635 

Silver ores, Smelting costs and prices for 

L. S. Austin 170 

Smelter, East Helena. Montana 454 

South Dakota production 853 

Texas production 819 

U. S. production 924 

Utah, Bingham Canyon 191 

I'tah production 705 

Washington production 77 

Western Australia production 381, 861 

Wisconsin, production by districts; Platteville ore mar- 
ket 70, 305, 456. 616, 817, 970 

Leasing bill. Alaska coal 615 

Bill. Alaska coal. In Senate 571 

Hill, in Congress 530, 615 

Leaver lease, Tlntlc. Utah 117 

Le Due mine, California 856 

Lena Goldflelds. Siberia 251. 608, 808 

And European war 472 

Lenher. Victor Auto-reduction in the precipitation 

of metallic gold 411 

Leonora claim, Utah 577 

Le Roi mines, Rossland. British Columbia 346, 935 

Leslie. E. H Colllnsville smelter of the Bartlesvllle 

Zinc Co 204 

Ditto Nassau zinc works at Depue. Illinois.... 475 

Ditto National Zinc Co.. Bartlesvllle, Oklahoma.... 136 

Ditto. . . .Rose Lake smelter of the Granby company. . . . 395 

Ditto Shoveling machines at Flat River 807 

Ditto Zinc smelting at Bartlesville. Oklahoma.... 44 

Ditto Zinc smelting at Hillsboro. Illinois 280 

Lett, S. J Rand banket. Horwood replies to discus- 
sion 186 

Lewis. .7. H Design of the Plymouth mill 846 

Lewis, .lames B Tin mining in Tasmania.... 65 

Lews Gold Mining Co.. Colorado. Last Dollar mine 423 

Lexington Gold Mining Co., Colorado 423 

Leyner drill 266, 876 

Limbach. Edward C. death of 78 

Lime, 'burning', and fuel consumption 567 

California production 929 

TJ. S. production 428 

Virginia production 333 

Washington production 77 

Limestone, asphaltic. Texas occurrence 927 

California production 929 

Flux. Queensland production 961 

Ireland production 552 

Missouri production 664 

Queensland, Gore deposits 380 

Washington production 77 



l.ln. ,.!- 

Llndai Lank, i 1 1 

• i 
Link i 

l. in. 1. 1. South Dak. .In prod i lit, ii 
Little Bell mini 

!'l"le .1 iv inlii, 

Pel I, line. P 
Little Tuggor holnt 
Little w 

Locomoth •'. ci ntli I ■. , i 

aline, in mines, ami ali depletion 

lealth .it miners " P n 

Lode mining 1 , Yuk,ui 

London, > , i ■ . 

i .,,1,1 Imports 

Metal Exchange and wai 

'■' I" Edward Walk 

l .Mini copper requti ■ mi nts 
London Electron works Co., England . 

London mine, I Colorado ' , 

Loni Pine mine. Republic, Washington '..'.'.'.' 

sun Consolidated Mining Co., Nevada . 
Lone Star Gold Mining Co., Dawson, Irukon, i 

Lone!) Reef Oold Mining Co., Ltd., Rhodesia.. . 

FOOd COSl 

Long Lake iniiie. i intarlo 

I king forward: 



American Mining Congress, i'i nix, Arizona. 

Calumet ,\t Hecla Safety First' 



Mexico: Torres' Constitutionalist manifesto ... 

Lorain Coal * l k Co., wheeling Creek mil xploslon 

Lorlng, w. .1., welcome banquel 

1,1,111 Edltorl - 

ii-i riil-iiii] [iroiiiiction 

Louvaln University and Cambridge University 

Low drill-repair cost on the Gogebic range 

„ . •' '•'• Herteilng.... 

Pressure oil forge 

Lower Burma, Mining In the Tavoy district 

k Maxwell-Lefroy. . . . 
Lower Mammoth Mining Co., Manimotli, Utah. 117, ::."il .".77 

Lubricant for high temperatures 

Lubricator, automatic rope 

Lucky Boy Consolidated Mines Co.. Nevada 

Lucky Tiger-Combination Gold Mining Co., company re- 
port 

Lufkln Rule Co.. combination pocket rule and level 

Metallic tape threader 

Luning Gold Mines Co., Nevada 577 

Luning-Idnho Mining Co.. Nevada 3 Sr»i 

Lunt, Horace F Vindicator mill 

Lyons Atlas Co.. Diesel engine, Largest In America 

M 

MacDonald, J. A Phototopography 

MacNamara Mining Co., Tonopah. Nevada 

Macadam, California production 

Machine drilling efficiency Thomas M. Bains, Jr. . . . 

Magnesite and war Editorial.... 

California production 

U. S. imports 

U. S. production 

Uses and occurrence Editorial .... 

Maine, feldspar production 

Malaguit Dredging Co.. Philippine Islands 

Malay Peninsula tin industry 

Tin Industry and Australian jam 

Malaya Tin Corporation 

Malm process Editorial. . . . 

Mambulao Placer Co.. Philippine Islands 

Mamie mine. Granby Consolidated 

Mammoth Channel Gold Mining Co., California. Crabbe 

suit 618. 

Mammoth Copper Mining Co.. Kennett, California 

269, 313, 427, 535, 574, 658, 777. 

Fume suit 734, 930. 

Smelter 

Mammoth Mining Co., Oregon, suits 

Mammoth Mining Co., Mammoth, Utah 117, 463, 

Man and his job, A Editorial.... 

Management of a country smelter Editorial.... 

Ditto Herbert Lang. . . . 

Mandarin Mines Corporation and Yellow Jacket mine, Idaho 
Manganese, and effect of war Editorial .... 

Brazil shipments 

Commercial, American 

For use on Pacific coast 

New Zealand production 

Ores, world's supply 

Queensland production 

U. S. production 135. 

Virginia 333. 

Manhattan Consolidated Mining & Milling Co., Nevada.... 

Manila. Philippine Islands, water-supply 

Mann, William S Pan as a regrlnder. . . . 

Mararoa mine. Western Australia 

Marble. California production 

German Southwest Africa exports 

Market, Status of the metal Editorial.... 

Marquette range. Michigan, Mining methods 

Marquette Trap Rock Co \ . 

Marsh Mining Co.. Idaho 

Never Sweat lode mining claim 

v. Washington Water Power Co 822. 

Marv Mac company. Western Australia 

Mary McKinney. Cripple Creek, Colorado 231. 618. 658. 

Maryland, coal production 

Mineral production 

Mascot & Western Railroad Co.. Arizona, incorporated... 
Mascot Copper Co.. Dos Cabezos, Arizona 

And Big Pine, Arizona 



in 

n, 1 
lit 

11 1 

I 

342 

984 

277 
586 

lis 

lnlll 
■ 

280 
1(2 

81 
542 
276 
697 
697 
887 



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929 
574 
526 
940 
64S 
5711 
333 
15 
16 
903 
977 
615 

776 

930 
974 
4 60 
737 
536 
546 
431 
440 
772 
278 
724 
496 
741 
919 
108 
963 
861 
605 
462 
454 
963 
382 
929 
299 
240 
595 
772 
310 
270 

1008 
155 
974 
236 
409 
74 
74 

1006 



it; 



MINING PRESS 



Vol. 109 



Page. 

861 

ley Mines Co o, Nevada .......... 

503. 536, 669, 694 

And mini- "" 

195. -'in 

Thompson, Nevada, sm< Her 69* 

us, Hoosac tunnel, driving and the lessons it 

t 659 

,'an 

Ing furnaces 1 . < 

cln Dredging Co.. Philippine Islands 570 

tllnlng in the Tavoy district, Lower 

Burma * 48 

Mn\ Paj Mining & Milling Co., Eureka, Utah. 117, 361, 3s:., 

McAh i nia 100? 

i Driving the HfjOSac tunnel and the 

i. night 559 

Shaft timbering;, tfeaabl rang sota >•:>« 

Id Mining Co, Missouri 931 

i Co. titanium testa Editorial 983 

i < re U pine Mines. Ltd., Schumacher, Ontario.... 

733, 738. 1004 

! Xiplssing Mines Co.. Ontario 463. 572 

i- Savage Mines of Cobalt, Ltd.. Ontario. 

81, 169, 386, 458. 703. *. r .s. 977 

and Jupiter mine 573, 1003 

M Mlllan Mining CO. *InC plant. Hazel Green district Wls- 

ii 457 

McRae-4 eddman claims, Idaho Ill 

i i'<l 924 

Meerachaum, New Hexico deposits 819 

v i lottfi led Co.. belt conveyors and wet concrete. ... 84 

Mellor, IS. T Rand banket. Horwood replies 

to discussion 413 

Melting out slag notches 994 

s and what to do about it 

Thomas Darlington. ... 331 

La-Nevada mine, Highland. Nevada 484 

Menzlea Consolidated Gold Mines Ltd.. Western Australia. 

382 853 

M.-rion. Henry K.. copper statistics 622! 860 

Messina (Ti development Co., Ltd 122. 200. 889 

And Grenfell failure 500 

Metal market. Status of Editorial. . . . 240 

Mine fatalities. FJ. S Editorial 586 

Review. New Fork 34. 198. 388. 540, 740, 899 

\ugtist number Editorial. ... 543 

Metallic tape threader* 276 

Metallurgist, scrap Editorial ... . 85 

tlve natural and commercial scarcity of the... 

Edwin C. Eckel 182 

- deposition in and near intrusive rocks 

by Andrew C. Lawaon .... 600 

la of mining at Republic mine, Republic-, Michigan.. 

R. B. Wall. i 

Of taking mill-head samples Lloyd Robey. . , 

i it testing placer gravels Tames W. Nelll. . . 

Ditto Walter J. Radf ord . . . . 5, 221 

n Gold A Silver Mining Co., Virginia City, V 

385. 659, 1009 

Weaver Mining Co 462 

Mexican Light A Power Co., Ltd 1010 

n Metals CO 459 

n Mining .(our nal, The, publication resumed 

Editorial 667 

Me Ico, Chihuahua mining 621 



Coinage, bronze tive-centavo 768 

Conditions in 71. :'.12. 621, 73X, 780 

'>itto Editorial S5, 239 

in. and New York mining Interests 164 

Conditions In. Huerta mine titles annulled 

Conditions In. mining 774 

Conditions In, railway service 587 

lion 120 

703 

i Hon exports 580 

I nit- ports 792 

International Mining Association 703 

Labor and Its peculiarities Max .T. Welch.... 597 

Lah-u conditions at mines Editorial.... 360 

Map of 504 

Mining ondMions 419, 504 

Money situation Editorial 359 

■ 415 

operations suspended 621 

Petroleum production , 935 

Ports or entry 809 

sources 798 

San Luis Potosl minimum wage ! ! I ! ! 660 

sinaloa and west coast mining outlook Editorial. 

Sonora mines 538 

Tampl^o oil exports '538 1011 

Torres' Constitutionalist manifesto .' 984 

Train service 504 

Mexico Mines of El Oro ..!....!"!!' 889 

A Charlton mine. Rand !.!!!!!!!!' 112 

Cyanide practice ' 496 

Miami Copper Co., Miami, Arizona. .. 114. 122 154 208 269 

^, 313. 529! 572! 816 

D *ttO Editorial 203 

Company report 

Dupes suit !!!!!" 501 

v. Minerals Separation. Ltd .228 732 

Mica, North Carolina production ......' 705 

South Dakota production 853 

Michigan, copper companies men employed 232 

lountry Commercial Club ....I! 456 

untry map ' 773 

CoppeT district 658 

Copper mines. Efficiency In « !.... 763 

, 768 

Copper production ' ' Ve's B] G 

Copper shipments ' S r ,7 

hie range. Low drill-repair cost on the. .'.".'." 

J. F. Bertellng 599 



Page, 

. .1 n. Houghton County casualties 666 

Houghton County taxes 816, 928 

Houghton memorial Editorial .... 626 

Iron ore districts and P. P. I. E 889 

Iron River district 306 

iron shipments 975 

Lake Superior district — See Lake Superior district. 

Mai m . Mining methods on the 595 

Mesabl range iron 1001 

e-set ore -chute 763 

Mineral production ~n:, 

duction 

Portland cement production 38 

Itary conditions in copper country 

plug met hois is 

Trap-rock quarries 7 7 L' 

Michigan College of Mines, workingmen's course 1 

nning Co., Utah 660 

Midas Gold Mining Co., Knob, California 856 

And Victor Power & Mining Co 230 

Midas mine. Gtanby Consolidated 630, 615 

Midlands Oilfields Co.. California 383 

Midway mine, Nevada 895 

Mikado mine, Verona, Michigan, Low drill-repair cost 599 

Mill design and machinery in inaccessible places 416 

Head samples. Methods of taking Lloyd Robev .... 188 

Practice and cleanliness 41". 

Practice, crawl girders in a battery-house 729 

Practice, gold and silver launder construction 454 

Milling, gold. Development in the Philippines. C. M. Eve. . . . 287 

In cyanide A. W. Allen. . . . 177 

Ditto Noel Cunningham.... 606 

Minas Pedrazzini Gold & Silver Mining Co., Sonora, Mexico 312 

Mine accounts, Simple 60 

Mine Operators' Association, California — See California. 
Owners and the California Industrial Accident Commis- 
sion Editorial. ... 744 

Products. U. S 924 

Rescue contest, Bisbee, Arizona 114 

Rescue contest, Ely, Nevada H6 

Sampling 567 

Signboards 22 

Taxation and the conference of tax officials 

H. A. E. Chandler 838 

Ditto Editorial 831 

wastes 495 

'Mine Workers Journal" Editorial. . . . 904 

Minera La Blanca y Anexas, Cia.. Mexico 580 

Mineral lands on Indian reservations Editorial.... 85 

Paint. California production 929 

Production of Virginia, 1913. . .Thomas L. Watson 333 

Statistics 38, 428. 466, 664. 705. 861 

A\ ater, California production 929 

Water, U. S. production 428 

Water. Virginia production 605 

Water. Washington production 77 

Mineral Point Zinc Co 70 

Coker mine. Wisconsin, shaft-sinking record 886 

Nassau plant E. H. Leslie.... 475 

1 Range railroad, Michigan 928 

Minerals Separation, Ltd., Elm Orlu ores flotation 

. „ Editorial 545 

In Supreme Court 732 

Ditto Editorial 743 

v. James M. Hyde Editorial. ... 41 

V. Miami Copper Co 228. 732 

Gasoline locomotives and health of. . .Editorial. . . . 585 

Ditto O. P. Hood 592 

Ten Commandments 344 

Ditto Editorial 317 

Mines and European war Editorial .... 317 

Gasoline locomotives and air depletion '"' 60S 

Mines Company of America 68 

Creston-Colorado and Ei Ravo mines ' 419 

La Colorado mine strike 77 

Mines Operating Co., Park City. Utah 77, 312. 577. S24, 1010 

Chlorldlzlng leaching 260 

Chloridlzlng roast F. Sommer Schmidt. ! ! ! 324 

Mining and financiers Editorial 35<t 

And milling at Republic. Washington. . .E. C. Morse. ... 435 

Assessment suspension bill 652 

Decisions 39, 123. 164. 315. 428, 507, 623. 784. 862', 936 

District of Plnos Altos, New Mexico 

W. Rogers Wade. . . . 402 

Eastern capital and 154 

Experts, amateur Editorial.... 359 

Hydraulic. Plan for reviving C. S. Haley .... 914. 943 

In Alsace-Lorraine, Germany 451 

In Argentina , 17 

In the Far North Emil Edward Hurja.' ! ! ! 

10. 69. 103. 152. 225, 261. 341. 416. 56S. 609. 769. R48 887 965 

In Spain 56 

In the Tavoy district. Lower Burma 

„ „ , E. Maxwell-Lefrov. . . . 44K 

l n J-Ttah D. C. Jackllng 301 

In ^ enezuela 648 

Law codification 3o'g'. 731 

Law codification commission 927 

Law. Revision of the W. F. Collins. ! . . 453 

P tto Clarence K. Colvln 106 

£ "° C. J. Fry.... 21 

pitto.... G. L. Sheldon 259 

Law revision again Editorial.... 201 

Law revision and Committee on Mines and Mining 

Editorial 86 

Law revision proposed F. R. Ingalsbe.... 100 

Law. revision of. Report of committee. .E. R. Kirbv.... 869 

Law revision. Work for Editorial 866 

Legislation at Washington. D. C 498 

Legislation. Washington, D. C. and war 571 

Machinery, driving methods, Western Australia 881 

Men and politics Editorial. ... 431 

Methods on the Marquette range 595 

Mexican conditions Editorial 360 

Near Klaochow 450 

Properties. Selling Editorial!!!! 628 



Vol 1"'' 



MINING PR FAS 



17 






Minims. U.w\«l In l' 

• n rtnJ Ed 



'Mlllill* ■n<l 
Mini' 
Mining 






Mi 

m 



Ml0 



Bdltorlal 

K Woi : 

J '1,111 

i.il 
■ 
Ion 
•ubi m timbering P B Hi laid 

■ 

pla 
- 



Neck <'n> district 
■ 

I'ltit Klvsr shoveling machines.. K 1 1 I.. Ills 

sxperlmental work 

Joplln district mines 

Kansas-* ikliitioma district St-.- Joplln 1 1 1 .-* 1 1 1 . 1 

Mines and mineral tvhliiH ui Panama-Pacific Exposition 

Northwestern "ii an.i gas territory Bdltorlal.... 

Petroleum production 

Portland cement produotlon 

Bouthweat Missouri mint-. Safety and Sanitary A 

atlon 

Mitchell coal mine. Illinois, disaster Editorial.... 

Miipah Bxtenelon Co., Tonopah. Nevada. 

imi Copper Co., Nacosarl, Sonora, Mexico.. 1SS, SIS, 

Modderfonteln B. Transvaal, Nlesen stamps 

Modderfonteln group of mines. Hand 

Modoc Mines Co.. High Grade. California 193, 

Mogul Mining in . South Dakota 

Mohawk Mining Co., Mohawk, Michigan 6S. 112, 232, 

347. 427, 580. 658. 873. 

Molds, bullion, silver capacity 

Molybdenite. Australia 

Queensland production 56, 

Monarch mine. South Dakota 

Monarch oil well, Calgary Held. Alberta. Canada .... 31. 68. 

Mond Nickel Co., Ontario, Canada 689. 732. 772. 

Honey though mining. How to make 

Mongolia, gold mining In 

Map of 

Upper Yenesel valley and adjacent 

Ditto Newton B. Knox 

Mongolyor company. Gold mining in Mongolia 

Monitor Belmont Mining Co.. Nevada 462, 

Montagu & Co., Samuel, silver statistics 160. 313. 539. 

662. 739. 860. 
Montana. Butte district 

Butte district mines and European war 

Hutte district mines and unions 424, 

Editorial 

Butte district strike 

Butte district strike and state troops 

Butte district unions 189, 

Coal production 

Copper production 30. 

Dillon quadrangle 

Bast Helena, lead smelter 

Gold production 

Lead production 

Map of southwest 

Metal production 

Phosphate. Elllston field 

Silver production 

U. 9. Geol. Surv. map 

Zinc production 30, 

Montana-Blngham Consolidated Mining Co.. Bingham. Utah 

Montana-Tdaho Copper Co.. Idaho 270, 

Montana Minin"' Co., Ltd., litigation expenses 

Editorial 

Montana Power Co., Montana 

Company report 

Montana-Tonopah Mining Co., Tonopah, Nevada 

76. 385, 619, S23. 932, 

Monthly copper production 

Moore. Charles. .What is the matter with prospecting?.... 

Moore process, radium refining Editorial.... 

Morning mine. Idaho 350, 

Morocco, Northwest Africa, mineral resources 

Morrison. H. A., and H. G. Thomson Operation of the 

Oliver filter In the Globe mill 

Morro Velho mine. Brazil 

Morse. E. C. . Mining and milling at Republic, Washington 

Moscow mine. Idaho 

Moscow Mining & Milling Co., Moscow, Utah 

Mosquitoes, Eliminating the 

Menace of, and what to do about It 

Thomas Darlington. . . . 
Mother Lode. California, activity 

Map 

Metallurgical practice Editorial. . . . 

Metallurgical practice and Plymouth mill 

Mother Lode Copper Mining Co.. Mother Lode property, 

Alaska 226, 499, 

Motor tires 

Motors for driving Hardinge mills 

Mount Champion mine, Colorado 

Mount Lassen, Eruption of William H. Storms.... 

Mount Lyell Mining & Railway Co., Ltd.. Queenstown. 
Tasmania 122, 808, 

Company report 

Men employed 

Mount Morgan Gold Mining Co.. Ltd., Queensland. Aus- 
tralia 122, 300, 340, 616, 716, 

Company report 

New plant 

Mountain Copper Co., Keswick. California 75, 



10 

it 
279 
981 



421 
664 

190 

117 

B07 

157 

664 
113 

its 

935 
38 

931 

,-.,;; 
976 
858 
450 
730 
461 



1008 
340 
73 
961 
655 
117 
970 
591 
410 
410 
687 
922 
410 
858 

1012 
S51 
266 
461 
431 
572 
816 
884 
176 
768 
115 
4 54 
30 
30 
573 
705 

1008 

30 

931 

354 

1010 
619 

277 
SO 

658 

1009 
121 
257 
41 
424 
815 

554 
793 
435 
111 
620 
14 

334 
150 
150 
668 
670 

698 
567 
742 
700 
143 

876 
82 
59 



314 
988 
269 



Mlnlnn 

11 Aualrulln 



i: II -i" I 



Uounl 

■ 

■ & Equipment Co 

mills 

Mules v. eli ,i mines . 

Musgrove Mlnli,,. 

ik mills. Ni 
M) ers- W lialey ■hoi i Una. mi 

mine, Kolai district, central ini .65, 95t, 

N 

Nassau Zinc Works at DspUe, Illinois..., S II [stalls 

National City Bank Bdltorlal 

And George E. Roberta Bdltorl 

Nation. ,1 c ntratoi Co., Missouri, sludge planl 

,i Copper Co., Mullan, Idaho I'M 161 575 

i Lead < !o , 

inal Mines Co., National, Nevada .... .. 

■ l zinc Co., Bartlesvllle, nkini n 

Ditto B, ii L, 

Natonins Consoltdat,-,! of California 

E'»»eo Bdltorlal. . . .' 

Refinancing Bdltorlal.., 2. 

Natural gas— -See gas. 

Qaseous fuel Editorial 

Nature, l:u,klng v. Backing Editorial.... 

Nau Aug inln,-. Idaho 

Navigation laws, U. S., system of Editorial....' 

N I'd: constructive co-operation of mining men 

Bdltorlal 

Needles Mining & Smelting Co., Arizona 

Nelll, James W .. .Application of Jigs to gold dredging.... 

Ditto Editorial 

I ill to. Experimental development of the Hall process. . . . 

1 into Methods of testing placer gravels .... 

Nerchinsk Gold Co., Ltd.. Siberia 

Netherlands, South American trade 

Neutrality. Philippine Islands Editorial. . . . 

Nevada, Austin district 

Belmont district 

Comstock Lode Are 

Comstock Lode mines 

Comstock Lode mining operations 

Comstock Lode unwaterlng 

Ely district Jasperoid 

Gold district discovery Editorial.... 

Goldfleld and Tonopah fires and I. W. W 

Editorial 

Good Springs platinum discovery 503. 

Luning district 536. 

Manhattan mills 

Map of western 

McCoy camp 

Metal production by counties 

Mining conditions 

New York canyon district 

One-man carry 

Palmetto district gravel deposits 

Ploche. Present conditions at James W. Abbott.... 

Rawhide mines 

Reno, mine-rescue and first-aid contest 

•Safety First' contests, Ely Editorial 

Sliver Park district 

Tonogold discovery 

Tonogold mines 701, 823. 932, 

Tonopah and I. W. W Editorial. . . . 

Tonopah district enlarged 

Tonopah mines.. 31. 116. 159, 195. 232. 311. 351, 385, 424, 
425, 462. 503. 536. 577. 619, 702, 737. 779, 823, 857, 895, 

932. 976, 

Yellow Pine district. Platinum-gold lode deposit in.... 

Adolph Knopf. . . . 

Nevada-Anaconda property, Nevada 

Nevada Cinnabar Co.. Nevada 159, 622. 

Nevada Consolidated Copper Co., Ely, Nevada . . . . 11 6. 122. 
195. 208, 313, 427, 462, 536. 619, 691, 737. 779, 

Ditto Editorial 

Accid en ts 

Company report 271. 

Copper Flat mine explosion 

Eureka pit 

Eureka pit explosion 

Safety First 823. 

Steptoe Valley Smelting & Mining Co 

Taxes 

Nevada Copper Mining. Milling & Power Co 

Nevada Douglas Copper Co., Nevada.. 195, 385, 458. 462, 503, 

Casting Copper section 

Leaching plant 

Nevada Hills Mining Co.. Nevada 30. 232. 384. 576, 736. 

Nevada Packard Mines Co., Rochester, Nevada 

576, 619, 932. 

Nevada Valleys Power Co.. Nevada 

Nevada Wonder Mining Co., Nevada 

Company report 

Neville. John Pym, death of 

Neville-Free Coinage mine. Cripple Creek, Colorado 

75, 575, 
New buildings of Bureau of Mines 

Porous mineral medium 

Portable drill 

Ventilating fan 

New Almaden aulcksilver mine. California 

New Aurora mill An Occasional Contributor. . . . 

New Centurv Mining Co.. Galena. Kansas 

New Cornelia Copper Co., Ajo mountains, Arizona, Leach- 
ing experiments on ores — I, II, III 

Stuart Croasdale. .. .209, 252, 

And Calumet & Arizona Mining Co 

New Hampshire metal production 

Mineral production 

New Idria 



110 

a«s 

619 
958 



119 

I i 
139 

I 

1J.. 

867 

658 
.'117 

1006 

90S 

923 

221 

249 

792 

359 

659 

462 

1009 

424 

669 

1009 

1001 

625 

787 

:,:■', 

VI" 
932 
697 

76 
•124 
115 
696 
634 
158 
483 
778 
455 

41 
486 
659 
1009 
126 
659 



99 
975 
898 

978 
20 3 
311 
732 
651 
382 
311 
976 
425 
932 
351 
536 
311 
737 
894 

1009 
823 
736 
901 

977 

931 

591 
357 
624 
624 
217 
57 
822 



291 

383 

38 

705 



18 



MINING PRESS 



Vol. li in 



Page 
metal produ< lion 

• "■• 







630, M - 

Lit I loi 

\,. w Ki atlon Consolidated Cop- 



Ditto ...... Bdltorlal. - ■ 

i. ■■ 

i" i 

i rlcl molyb i 669 

776 

Meerschaum deposits 819 

Mir i ion 76, 

Mining districts 819 

MoBjoIlon 73:: 

l< Id 



Pino fllstrl« I W. !;■■-■ i b Wade. . . 102 

- - . - 7 i '■ 

New Modderfontein Gold Mining Co., Ltd., Band 



New Process Metals Co., Michigan 

South i 'akot 
Mill practice, with particular reference to continuous 

tatlon Jesse st mi n i "us. . . . 722 

impany, Washington 

South Wales, Broken Hill metal pro 642 

Broken mil mines mi 

ken mil shipments 

Broken mil zinc and war 118 

Gold production 198 

Mineral production 49 

New York, coke ovens 409 

tuctlon 36, 

Portland cemenl production 38 

New York - 

Business and European war 

Metal market and war 30i 

Met 34. 198, 388. 640, 740, 

Mining and eastern capital 164 

New York, Honduras & Rosarlo Mining Co.. Honduras.... 68 

Company report 681 

New York, New Haven & Hartford railroad staan 

New York exchange 151 

New Zealand, Auckland province gold 1003 

Gold production 

Government coal mines 

Iron and steel Industry 806 

Iron deposits 

Knurl gum 815 

Map 

Mineral production 919 

Mining ami war 1002 

Mining Industry, .stale aid Ml 

New Plymouth district .-II wells 1004 

Operating costs ;it mines near Reefton 626 

' >tlra tunnel, South island 340 

Point Elisabeth government colliery 964 

Silver production 613 

Thames district, North Island 614 

Thames Drainage Board suspension LOO 8 

Whit*- Island sulphur deposit Editorial 903 

Ditto W. D. Ilornaday. . - ■ 918 

New Zealand Sulphur Co 913 

White Island sulphur plant destroyed 679 

Newbury Mining Co 468 

Newfoundland, copper production 120 

Niagara Falls, artificial graphite 80 

Nicaragua. Deltrlck Concession eanceled Editorial.... 982 

Imports and exports 792 

Mineral resources 797 

Panama Mining Co. and Tonopah Mining Co 780 

Pis Pis district inn 

Tonopah Mtnlng Co. property 578, 732 

Nickel Editorial 904 

And war Editorial 904 

Canada 732 

Canada and war 772, 969 

Ontario and war 818, 891 

Ontario production 1 1 7. 468. 858, 891 

Relative natural and commercial scarcity of the metals 

Edwin C. Eckel 182 

Nigeria, Juga Tin & Power Co.. Ltd.. estimates 

A. W. Hooke 414 

Tin production 5S0 

NIplsBlng Mines Co., Cobalt, « mtario. . .117. 159, 190, 196. 233. 

-. 504. 580. 621 779, si;., 077, 978 

And Mclntyre mine .".7 2 

And Mclntyre share 463 

And Terk-Hughes property 

In goldtlelds 345 

New ventures 407 

Nippon Oil Co., Japan 68 

Nit ra' ports 876 

Chile exports problems Editorial. . . . 981 

Chile production Editorial .... 829 

Nitric acid In gold treatment 886 

Nltro lamps Editorial. ... 85 

Noble Electric Steel Co., Heroult. California 777 

Ferromanganese 379. 383 

Manganese 893 

Noland, Lloyd Mosquito elimination, Tennessee Coal, 

Iron A- Railroad Co 14 

Nomenclature, Rock, in new mining districts 

C. T. Brodrick 185 

Norman. Sidney Norman-Federal suit.... 339 

Norman-Fedc ral suit 21fl 

North Anantapnr. Tndta ... 

North Broken Hill. Ltd.. New South Wales, rompanv report 782 

North Butt.- Mining Co.. Montana 208, 351. 461 

And 1002 

Company report 282 

Taxes <I31 



N«.T tli Carolina metal production 

Mineral production 

North Dakota, coal production i 

North Mountain Mining Co., < Iherry ' Ireek, Nevada 159 

North Son on Id (_•.; 

North Star Mines : i. 659 

History William Hague and W. D. Pagan ', i :* 

Ditto T. A. KIckard, Editorial.. . 544 

Taxes B23 

North star Mining & Milling Co., Jarbldge, Nevada 76, 1009 

North Washington Power ft Reduction Co. litigation. . , 

Northern Ontario Exploi 970 

Northern Pacific Railroad Co« and Pittsburgh \- Glllmon 

392 

Northwestern Australia and Us ml ourcea 

» A. W. All. I 

Norway and Sweden copper production 120 

Kongsberg mines 9 j 1 

Mining and war ;,-.tl 

Smelters 

Sydvaranger property 

mines and war 970 

Guysoorough county gold mining 26 

Mining ;.; I 

Nova Scotia Steel ft Coal Co 421, 499, 971 

Nundydroog, India 265, 958 



O'Brien, W. S., death of 278 

Ochre, Georgia production 166 

Wisconsin, Highland district 

ohio, gas, natural, production 525 

Mineral production , 

Petroleum production 

Portland cement production 

Potterv production 236 

Ohio Copper Mining Co.. Bins ham. I' tali 27, 196. 351. 

503, 587, 577, 737, BBS, 'X',J 

Cop t ro I of B16 

Mill Improvements 375 

( in — See Petroleum. 

And gas lands bill 266 

Forge, Low pressure 584 

Sulphur 188 

Switch, New high-voltage 166 

Whale B24 

Oilstone, U. s. production 38 

Oklahoma. Bartlesville, National Zinc Co..E. H. Leslie.... 186 

Bartlesvtlle Zinc Co E. H. Leslie 204 

Uartlesvllle zinc smelting E. H. Leslie. ... 44 

Coal production 184 

, natural, production ,"'.". 

Ditto Editorial 867 

Kansas-Missouri district — See Joplin district. 

Mineral production 466 

Petroleum production 36 

Zinc statistics 814 

Old Channel hydraulic mines. Galice district, Oregon. . lit"., 688 

Old Colony Copper Co., Michigan, company report 975 

Old Dominion Copper Mining & Smelting Co., Globe, Ari- 
zona.. 27. 68, 114. 122. 208, 313. 465. 615, 820, 855. 969. 

973. 978, 1006 

Smelter, basic-lined converters 340 

I Biter, Operation In the Globe mill 

H. A. Morrison and H. G. Thomson.... 554 

Oliver Iron Mining Co.. Michigan, Section 21 mine 596 

Olives and carbon bisulphide 188 

Omega mine, California 2:+ 

One-man carry, Nevada 1 

Ontario, assessment work 4 »'. : 

Cohalt bullion shipments 702. 933 

ilt mines and war 

Cobalt mines conditions 499 

Cobalt ore shipments 819 

Cobalt ores. Sampling and assaying 60G 

Cobalt silver mining Industry decline 196 

Cobalt silver prices 696 

Cobalt stiver shipments 101 

Cobalt silver situation 386. 427 

Gold production 31 

Kerr Lake draining s:tt; 

Mineral production 117, 4 63. B58 

Mining districts map 891 

Nickel industry and war 818. 891 

Nickel production 891 

Porcupine gold mining and war 733 

Silver production 31, 891 

Sudburv nickel industry 732 

Sudbury ore deposits. Origin of Stuart St. Clair. . . . 243 

Toronto mining exchange 891 

Ontario Mining Co., Kellogg. Tdaho 350 

v. Stewart Mining Co., Tdaho 424 

Ontario Silver Mining Co.. Park Citv. Utah 11*6. 1010 

Ooregum Gold Mining Co.. Ltd.. India 255. 958 

operating costs at mines near Reefton, New Zealand 526 

Operations of Canadian-Klondyke Gold Mining Co.. Ltd.. 

Emll Edward Hurja.... 769 

Of Oliver filter In the Globe mill 

H. A. Morrison and H. G. Thomson... 554 

Of Yukon Gold Co Emll Edward Hurja... 568 

Opblr Gold Mines. Milling & Power Co.. Colorado. Relnohl 

'rapid cvanldir.g apparatus' 423 

Ophir Sliver Mining Co.. Nevada 859, 10(19 

Opohongo Mining Co.. Robinson, Utah 117 

Ore G. Aubrey Gow ... 187 

Chute, Square-set 763 

Contracts and the smelter Herbert Lang.... 492 

Deposition in and near Intrusive rocks by meteoric 

waters Andrew C. Lawson .... 600 

Deposits. Diffusion of Andrew 1 '. Lawson .... 20 

Feeder, Improved Ulysses B. Hough .... 562 

Loader. 'Iron Finlander' 902 

Oregon. Jackson, and Josephine counties' mineral resources 824 

Josephine County mining and railway 532 

Map of 19". 



109 



MIM\u l'KUSS 












u 

M 






Ditto 





I 

i •( Ro« i. . Mountain i 

Kllol i 

tnd mums Edltoi 

• 'f BudbUI 91 uart SI Clair .... 

Amadoi Consolidated Mines Co., California! lull- 

Oro ii line. Lead. s. .11111 Dakota 

1 

IkIiik. Ltd., Call fur 11 la 7 7 6, 

l.l.l . » 'olnmbln ... 

. . dlfflcultlei 631, 

■ mine, Western Australia 



. . I. t«l.. Kalffoorlle, Western Australia 

; Mil report Bl, 

>ir>k Goldfields, Ltd., Siberia 

Company report 

Consolidated Mining Co., Osceola, Mi< Mnan 

u: ) ■:.. 817. 

<»».irn tunn.-i. South [aland, New Zealand 

Ounces, troy, avoirdupois pounds ami kilns 

ourn Prelo Gold Mines, Ltd., Hra/.M 

inlii,-. company report 

Oven, beehive coke, temperatures 

■ Gold Mining Co.. Washington 

Oiocvrite deposits, Utah 536. 



101 

7(1 
143 

1008 

1 '. 

mi 
hum 

in 1:1 

1 1 j 
•;i 1 

;i 1 

928 
340 

II. -i 
846 
in.' 
496 
117 
693 



Pachuca vat. model 

1 IredBlng Co.. California 

PaclDc Cas A: Electric Co. load factor 

Pagan. W. D., and William Hague North Star mine, 

Grass Valley 

Painter Tramway Co., automatic rope lubricator 

Palladium Its characteristics, uses, and discovery In the 

Boss mine 

Pan as regrlnder William S. Mann.... 

Motion concentration 

Panama canal, cargo passed through 815, 

Canal. Culebra cut, Bucyrus dipper dredges 

Canal. Culebra cut slide 

Canal, death rale Editorial . . . . 

Canal, dredges 

Canal, earnings 

Canal, excavation 

Canal, fender chains 

Canal. Gatun lake watershed run-oft 

Canal, labor employed 

Canal, locks and currents 

Canal, Mlndl explosion 

Canal, power plants 

Imports and exports 

Resources 

Panama Mining Co., Nicaragua, and Tonopah Mining Co.. 

578, 
Panama-Pacific International Exposition Editorial.... 

And Michigan iron-ore districts 

Bureau of Mines exhibit 

Model mine 

Ditto Editorial 168, 

Paraffin wax. U. S. exports 

Paraguav. imports and exports 792, 

Park City Mills Co., Utah 

Smelter 

Parramatta sewerage works. Sydney. New South Wales, 

pumping engines 

Parsons Mining Co., New Mexico 533. 

Patent law. Flotation and the Editorial. . . . 

Ditto James M. Hyde .... 

Patents. Recent 83, 165. 468. 623. 

Peach pits and prussic acid manufacture 

Peace prospects in Mexico Editorial .... 

Peake. H. G Building a placer mining dredge with 

electric power-plant in Portugal 

Pearce. Gilbert, death of 

Pearce. Jackson A Cyanidation of Clear Creek and 

Gilpin County sulphides 

Pearl, occurrence 

Penn-Alaska Mining Co 

Pennsylvania and Vermont metal production 

Coal production 300, 

Electricity in anthracite coal mines 

Gas. natural, production 

Mineral production 

Petroleum production 36, 

Portland cement production 

Pennsylvania Railroad Co., steel rails 

Pennsylvania Steel company 

Perseverance mine. Western Australia 

Persistence of ore at Kolar T. A. Rickard. . . . 

Of ore at the St. John del Rey T. A. Rickard. . . . 

Peru, banks closed 

Bismuth production 

Borax Consolidated. Ltd.. and Arequipa borax fields.... 

Editorial 

Cerro de Pasco Mining Co 

Copper exports Editorial .... 

Copper production 120, 



340 
618 
107 

549 

980 

990 
'.11;;: 
468 
964 
847 
815 
168 
300 
693 
529 
67 
340 
768 
964 
260 
223 
792 
798 

780 
787 
889 
445 
256 
903 
693 
796 
386 
660 

608 
819 
586 
728 
862 
454 
668 

522 
532 



153 
38 
428 
65t 
525 
664 
935 
38 
608 
68 
382 
956 
985 
732 
590 

125 
121 
829 
795 



1'iii 

Lams 

Ml. 

I", ti ..I. no. 

Petroleum 1 I 1 1 ..... 

I'll "I, -Mil. [ |y, 

'..I lomlnvo nun. 
Silt sr 10 o.iu. 1 1. .11 
Home tan. ,ii 11,. a,,. 1. 

II,, Ml, II,, I I 

Peruvian C Ildated Mining Co., Utah 

a 

i',t mine, » intarlo 

r. I. i on ah., it. death ol 

Petrolatum oil. and petroleum production ............ 

Alaska production 

Albollne and petrolatu il 

ce-l .01 1 -1 no 1 in, 1 ion . . 

klltorlel. . . . 
linn 1 ,,ll 

California Industry 

1 California production 19.:, 

Ditto Editorial..., 

California State miuIiik Bureau and water in ,,1111,1, is 

editorial. .. . 

California. Water In oil Bands Editorial ... 

Canada, Alberta. Calgary li'-i-i 

tda production 

Colorado production 

1 lutch East irnii-s production 

Qallcla production 

Gas. and brim- wells of Sau-Chuan, China 

Thomas T. and M. C&rleton Read. 

Germany production 

Illinois production :,:M, 

India production 

India resources 

Indiana production 

Italy production 

Japan production 686, 

Kansas production 70S; 

Kentucky production 

Literature collection Editorial. . . . 

Louisiana production 

Map of U. S. resources 

Mexico production 

Mexico, Tamplco exports 788, 

Michigan production 

Missouri production 

New Mexico production 

New York production 

New Zealand. New Plymouth district 

Ohio production 661. 

OH and gas Industry. U. S Editorial.... 

Oil and gas land. California legislation. Washington, 
D. C 

OH statistics 

Oklahoma production 

Pennsylvania production 664, 

Peru exports 

Peru production 

Peru lands Editorial. . . . 

Refining and sulphuric acid 

Rumania production 

Russia production 

Tamplco crude oil shipments 

Texas production 466. 

U. S. Bureau of Mines division Editorial.... 

U. S. production 36. 924, 

U. S. railroads fuel oil 4). 

Washington. D. C legislation Editorial.... 

West Virginia production 

Wyoming production 

Phelps. Dodge & Co., Inc 122. 313, 458. 534. 97S. 

And Black Diamond mine. Arizona 

And Tombstone mines 

Tin production attempt Editorial .... 

Phenomena of adsorption 

Philippine Dredges, Ltd., Philippine Islands. .159, 352. 570. 
Philippine Islands, cement plant 

Customs revenues 

Cyanide supply 

Development of gold milling in C. M. Eye. . . . 

Dredging 23. 

Gumaos Placer Co 

Iron ores of Bulacan province 571. 

Mamhulao Placer Co 

Manila property valuation 

Map. northern part 

Map. southern part 

Mashate mining 

Mlndoro placers 

Mines tax 

Neutrality Editorial 

Philippine Dredges. Ltd 159. 352. 

Surigao province iron 

Phoenix mine. Granby Consolidated 

Phosphate. Egypt deposits Editorial . . . . 

Idaho. Georgetown district deposits 

Land bill 

Montana, Elliston field 

Rocky Mountain deposits. Origin of 

Eliot Blackwelder. . . . 

Phototopography J. A. MacDonald . . . . 

Picher Lead Co., Miami, Oklahoma 654, 

Plcking-up bottoms 

Piegan-Gloster mine, Barnes-King Development Co., Mon- 
tana 

Pigg's Peak mine, Rhodesia 

Pilot-Butte Mining Co., Butte, Montana 194. 

Pioneer mine. Nome. Alaska 






161 
191 



Mil 

13 C 

B 
I 
686 

Tin 

:.:::, 

, 27 
I 

lull 

935 

'..:;:, 
935 
:.:;:, 
nun 
985 

Sli 

191 
935 
935 
935 

964 

93.'. 

ir,7 
961 
935 
9.15 
538 
935 
1 
935 
964 
126 
935 
935 

1012 
460 
28 
Tim 
451 
8S9 

1000 
571 
898 



570 

7<" 

s:,:i 

!'7T 
571 
570 

24 
571 
570 

21 
359 
S59 
571 
1; 1 :, 

131 

651 

2i>S 

1008 

987 

I'll-, 

928 

22 

658 

::::r, 
461 
907 



20 



MINING PRESS 



Vol. 109 



Page. 

. ring In old countries Editorial. ... 587 

- Mining Co.. liorkland mine, Nevada. .70, 659 

irgh meeting of the A. I. M. E... 

Editoral correspond. -me . . . . 588 

silver statistics - -'. 739 

Alaska decision Editorial 1 

testing lames \\ . Nell!.... 

,.» Walter J. Radford 5, _'_'i 

Thomas A. Graves. . - 991 

- ing ground) 
Mining dredge Building with electric power plant in 

Portugal h. c. Peake S3 

Mining in the Fairbanks district 

Emit Kilward Hurja 965 

Plan for reviving hydraulic mining — I. II 

Haley. . . .91 1, 949 

Frederic P. Dewey... 

fornla production 

i iiuiriy'B paleozoic 

P. Krusch. translated by F. Sommer Schmidt.... 879 

Bit In southern Nevada. Adolph Knopf. . 990 

Nevada, Good springs district discovery 508, 576 

246 

fined '"i 

"duct It'll 612 

8 production 642 

Plattevllfe, Wisconsin, ore market (see Wisconsin). 

Plumbago, Ceylon 631. >> 1 1 

Plunger pumps, improved 108 

Plvmouth Consolidated Gold Mines. Ltd., California 

39, 167, S46, 674. 855. 893, 930. 973 

l>ltto An Occasional Contributor 329 

Mill 699 

Mill. Design of Geiaslo Caetani. . . . 670 

Ditto T. Parke Channlng, J. H. Lewis. . . . 846 

Pocahontas Lead & Zinc Co.. Missouri 113 

Poisoning, lead 188 

Lead, pottery Industries 529 

Politics and business Editorial.... 4:: 

And mining men Editorial 431 

Porcupine Aurum, Ontario, organized 421 

Porcupine Crown Mines, Ltd.. Cobalt, Ontario 

159. 267, 386, 819. 1004 

Continuous decantation at... Maurice Summerhayes 88 

Porphyry Dike mine, Montana 894 

Portable assay outfit Theo. A. Clack. . . . 491 

Porter porous mineral medium 367 

od Canal Tunnel Co.. British Columbia 537 

nd cement EJ. s production 38 

Cement, Washington production 77 

Portland Gold Mining Co.. Cripple Creek, Colorado 

75. 157, 194. 231. 350. 423. 575. 658, 735, 931 

Ports of entry. Mexico 809 

Portugal and Spain copper production 120 

Building a placer mining dredge with electric power 

plant in H. G. Peake 522 

Portuguese East Africa, Dredge construction 

Charles Janln.... 177 

Potash. Alsace-Lorraine production l">l 

And the Geological Survey Samuel H. Dolbear.... 883 

California. Discovery of Whitman Symmes.... 883 

Oregon discoverv 577 

Salts and war Editorial 

Spain resources Editorial. . . . 431 

Potassium cyanide. Magdeburg. Germany 567 

Potrero del Llano oil well, Tamplco 504 

Pottery, r. s. production 

Pounds avoirdupois Into troy ounces 415 

Power & Mining Machinery Co. and International Steam 

Pump Co no 

Power plant, steam, efficiency 924 

Precipitation, electrical, Progress of Editorial.... 626 

Precision of thought Editorial... 711 

Ditto W. S. Prosser 885 

PremleY diamond mine, Transvaal, graphite-coated dia- 
monds 260 

Present conditions at Ploche, Nevada. James W. Abbott.... i v : 

Presidio Mining Co., Shatter. Texas, cyanidatlon 643 

Pressures. Harvard University laboratory 188 

Prestea Block A mine. West Africa 814. 955 

Report and state of company 304 

Preston, Edmund B., death of 579 

Primrose mine. Alaska 312 

Prince Consolidated Mining Co.. Ploche, Nevada 462, 485 

Prince William Sound Mining Co.. Alaska 262 

Probert. F. R Three R mine. Patagonia district. 

Arizona 17 1 

Problglo Mining Co., Idaho Ill 

ind uses of tungsten O. J. Stelnhart. . . . 64 

Of radium in America Charles H. Viol 44."? 

Production statistics: 

Alabama coal 634 

Alabama coke 634 

Ditto, l'. S. GeoL Surv 80 

Alabama, Iron, pig 634 

Alaska, gold 422. 590, 734 

Alaska, minerals 820 

Alsace -Lorraine, minerals 451 

Arizona minerals. U. S. Geol. Surv 74 

Arkansas, coal. U. S. Geol. Surv 80 

Arkansas, minerals, U. S. Geol. Surv 664 

Australia, bismuth 590 

Australia, gold 198 

Bolivia, bismuth 590 

British Columbia minerals 346 

British Empire oil 188 

British Guiana, diamonds 650 

British Guiana, gold 377, 650. 707 

' 'a li fornla borax 567 

; fornia, gas, natural Editorial.!!. 867 

California metals. 1913 * 349 

fornla minerals ' 929 

1 UttO. T*. S. Geol. Surv " 501 

• 'allfornia pitroleum 193. 383. 699. 855 929 

Ditto Editorial 277 

California quarry products 647 



Page. 
Production statistics: 

California quicksilver, V. S. Geol. Surv 217 

' da copper 689 

Colorado coal 135 

Colorado coke, U. S. Geol. Surv 142 

Colorado metals, U. S. Geol. Surv 231 

Colorado minerals. U. S. Geol. Surv 705 

Connecticut minerals, U. S. Geol. Surv 705 

Egypt, phosphate 431 

Florida, phosphate, U. S. Geol. Surv 664 

France, coal 184 

France. Iron 184 

France, steel 184 

Georgia, minerals. L T . S. Geol. Surv 466 

Germany, East Prussia, amber ;»24 

Honduras, gold 955 

Honduras, silver 955 

Hungary, iron 552 

Idaho, lead 618 

Idaho, metals, U. S. Geol. Surv 231 

Idaho, minerals 618 

Illinois, coal. U. S. Geol Surv 466 

Illinois, coke, U. S. Geol. Surv 80 

Illinois, minerals 524 

India, British, coal 17 

India, gold 959 

Indiana, coal, U. S. Geol. Surv 38 

Indiana, coke, U. S. Geol. Surv 80 

Indiana minerals 753 

Iowa coal, U. S. Geol. Surv 80 

[Owa minerals 450 

Ireland, minerals 552 

.la pan. petroleum 686 

Japan, zinc Editorial. ... 167 

Joplin district ores 351 

Kansas coal, U. S. Geol. Surv 80, 248 

Kansas, gas. natural Editorial. . . . 867 

Kansas, minerals. U. S. Geol. Surv 705 

Kentucky, coke 107 

Kentucky, minerals, U. S. Geol. Surv 664 

Maine, feldspar 648 

Maryland, coal. U. S. Geol. Surv 236 

Maryland, minerals 409 

Michigan, copper 768, 816 

Michigan minerals U. S. Geol. Surv 705 

Minnesota, iron. U. S. Geol. Surv 664 

Missouri, coal. U. S. Geol. Surv 38 

Missouri, minerals, U. S. Geol. Surv 661 

Montana coal 176 

Montana metals, U. S. Geol. Surv 70S 

Montana minerals, U. S. Geol. Surv 30 

Nevada, metals, by counties. U. S. Geol. Surv 424 

New Hampshire minerals. U. S. Geo] Surv 70S 

New Jersey minerals, U. S. Geol. Surv 705 

New Mexico, coke 10 1 

New Mexico, minerals. U. S. Geol. Surv 76 

New South Wales minerals 49 

New Zealand, gold 198. 613 

New Zealand, minerals 919 

New Zealand, silver 618 

Nigeria, tin 580 

North Carolina minerals, U. S. Geol. Surv 705 

North Dakota coal. U. S. Geol. Surv 80 

Ohio minerals, U. S. Geol. Surv 664 

Oklahoma, coal. U. S. Geo], Surv 184 

Oklahoma, gas. natural Editorial. . . . 867 

Ontario gold and silver 31 

Ontario, minerals 117. 463. 858 

Ontario, nickel S :» 1 

Ontario, silver 891 

Oregon, metals. TJ. S. Geol. Surv 195 

Oregon, minerals, U. S. Geol. Surv 705 

Pennsylvania, coal 300 

Ditto, U. S. Geol. Surv i^ 

Pennsylvania, minerals. TJ. S. Geol. Surv 664 

Peru, bismuth 590 

Peru, copper 796 

Peru, sliver 795 

Queensland, metals 961 

Queensland, minerals 56, 605, 616 

Rand, gold 662 

Rhodesia, gold 80S, 959 

Rhodesia, Southern, minerals 459 

Russia, platinum 642 

Saxony, bismuth 590 

Siberia, gold 144 

South Dakota, gold. Black Hills 852 

South Dakota, minerals 853 

Spain, bismuth 690 

Tennessee, coal, TJ. S. Geol. Surv 80 

Texas, cement. TJ S. Geol. Surv 466 

Texas, coal. TJ. S. Geol. Surv 80 

Texas, gas. natural, TJ. S. Geol. Surv 4 66 

Texas, metals 819 

Texas, petroleum, U. S. Geol. Surv 4 66 

Transvaal, gold 72.614, 1001 

Union of South Africa, minerals 72 

United States alloys 102 

United States, aluminum, U. S. Geol. Surv 861 

United States, antimony, U. S. Geol. Surv 861 

United States, arsenic 648 

United States, arsenic, white 562 

Ditto. U. S. Geol. Surv 664 

United States asphalt, U. S. Geol. Surv 664 

United States barytes 412 

United States barytes, U. S. Geol. Surv 348 

United States barytes. crude 104 

United States bismuth 590 

United States borax 567 

United States carnotlte 648 

United States chromium. U. S. Geol. Surv 861 

United States coal, U. S. Geol. Surv 200 

United States coke 567 

United States copper 120 

Ditto. U. S. Geol. Surv 861 

United States explosives 679 



V..1 109 



MINING PRESS 



2] 



'.-• nunrapar 8 Oeol Sun 



Maii-a mil. i » f«riii. i Burv 

Editorial 

.-.ii i 
hi. r 8, Gaol. Sun 
"Til states . 

Surv 

r B tieol. Surv. . 



ri.lt.*. I Statva saa. 

Inn 

Inn ...;. ««,,. 

I'nit.-.i stat.a ir..n. l.iu Editorial.... 

I11I1..I si„|,-i laad, I' s Qeol. Sun 

I'nlli Surv 

Inn lite. V. 8 Oeol. Hurv 

United States niuuHi 

Ditto, l'. S. U10I. Surv 

United st.4t.-r* metals, eastern states, r s Qeol Burv., 

t 'ti 1 tu.i States mineral w.it.-r. r, s Qeol, Bum 

United States minerals, per oent »-f tin. world 

I'nit.'.l Stat. •« minerals, value 

United State! oil nuil kuh Industry Editorial.... 

United State! ollaton. Qeol, Surv 

I'nlt.-d Stntrs petroleum, I". S. CSeol. Surv 36, 

Unltod Stat.M plutlnuui 

itili.Ml States Portland cement, U. S, Qeol. Burv 

Cnitod States pottery, S, Qeol. Burv 

United States pumice, r. S. Qeol. Surv 

rnlti-d Slalea quarry rock 

United stut. h quicksilver, V. S. Gool. Surv L'17. 

I'nlled Slnt.tl radium 443. 

i'nlt.'.l Stati'» unit. I - . S. QaoL Surv 

I'nlteil Slat, m sand an.l uravel 

I'nltcd Statin alllva 

United States silver. I', s. GeoL Surv 

I'nlto.l St.it.s st.'.-l Ingots nnd castings, U. S. Qeol. Surv 

T'nltfil States stone quarri.-s 

rmti-d States sulphur, r. S. Geol. Surv Editorial.... 

United st.it. s tin 

Ditto, I". 3 I'.iol. Surv 

Vntted State! titanium. U. S. Geol. Surv 

t*n!t,.,l States trlpoll and diatomaceous earth, U. S. 

Bui v 

United statis tungsten, U. S. Geol. Surv 

I'nlted States uranium 

United States vanadium and uranium, U. S. Geol. Surv. 

United States zinc 

Ditto Editorial 

Ditto, I', a GeoL Surv 314. 

Utah metals. U. S. Geol. Surv 

V.-rmont minerals. U. S. Geol. Surv 

Virginia coal, U. s. Geol. Surv 

Virginia minerals, U. S. Geol. Surv 

Virginia minerals, 1913 Thomas L. Watson.... 

Virginia rutlle 

Washington minerals, U. S. Geol. Surv 

West Africa, gold 217, 

West Virginia, coal, U. S. Geol. Surv 

West Virginia, gas, natural Editorial.... 

Western Australia, gold 2">. 499, 854, 

Western Australia minerals 

World, copper 

World, g.dd 908, 

World, petroleum. U. S. Geol. Surv 

World, tin 

Wyoming, copper. TJ. S. Geol. Surv 

Wyoming, gold, U. S. Geol. Surv 

Wyoming, silver. 1*. s. Geol. Surv 

Progress and working costs, Tanganyika copper mines... 

Robert Williams. .. . 

In zinc smelting Editorial .... 

Of electrical precipitation Editorial.... 

Progress Mines of New Zealand, Ltd.. South Island 

Company report 466, 

Costs 

Prospecting on the upper Magdalena C. S. Haley.... 

What is the matter with? Charles Moore. . . . 

T>itto Operator. . . . 

Prospective growth In output of tin 

Prosser. W. S Precision of thought.... 

Prussian blue and tea leaves 

Prusslc acid manufacture and peach pits 

Pueblo mine. Yukon 

Pumice. United States production 38, 

Pumping engines, Parramatta sewerage works. New South 

Wales 

Pumps. Humphrey gas 

Plunger, improved 

Purkeypile mine, Gold Hill district, Oregon 

Pyrite, California production 

Wisconsin. Benton district 



US 

111! 

m;i 

m.i 

U-. 

8*1 

38 

111 

MM 

41:. 
86 
38 

a 1 1 

38 

J 1 9 
861 
•■.is 
138 

21L' 

691 

M',1 

711.-. 

>-7 
r, 17 
861 
861 

236 

-in 
648 
861 
354 
278 
861 
705 
705 

80 
605 
333 
567 

77 
:i.-,r. 

18 
867 
972 
381 
120 
1001 
935 

15 
117 
117 
117 

487 
469 
626 
144 
614 
526 
404 
257 
107 
333 
885 

sir, 
454 

612 
929 

608 
108 
108 
116 
929 
970 



Quarries. California 

Production. Ireland 

United States, men employed 

Quarry products. Kentucky production 

Products, Missouri production 

Products, Pennsylvania production 

Products, Virginia production 

Quartz Creek Placer Mines, Idaho 

Quartz mining in Dutch Guiana . '. 

Rock. California production 

Queen of the Hills mine. Meekatharra, Western Austra- 
lia, company report 

Thermit weld of broken crank-shaft 

Queensland, Australia, gold production 19S, 

Gore, limestone deposits 

Gymple mining 

Metal production 

Mineral index 

Mineral production 56, 605, 

Quicksilver and war 

California production 217. 

Ores and flotation Editorial. . . . 



647 
553 
219 
116 1 
664 
664 
605 
735 
810 
929 

706 
594 
616 
380 
616 
961 
73 
616 
347 
929 



QUI. .. 

■ 

I.. I, illi,- nutuiiii |(y ,,f ti,, , 

1 nil 
Usea 

3ullp Qold Mining Co , Washington 
inn. y Mini. ,t. Co , Ham ". Ii. Mb 

II' ■ 
quo \ .i.iis miiir .ii founded, Nevada ... 

R 

Radford, W1.1t. 1 j Ifethode of t»»tinic plat 

graveli 

Bad In in hill 

"iti,. Editorial. . 

Hill in Ho 

■ I ..t Mm.--. Denver Investigation!... Editorial.... n 

Production tn Ainerloa »'h:trl<H 11. Viol.. 

United Btatee production 

UHtiroiui. Alaska 

Railways, United States, live per Qeni Increase in eastern 

tory KUitnriui. 

United States, fuel "ii 

i>W 1 ► .•vt'lupm.lil i '.. 

Rambler-Cariboo mine, British Columbia 117 

Rand, Charles i". .Sanitation work at Cuban Iron mines, . . . 118 

Ami Order of Isabella Editorial . . 86 

Rand banket, C. Baring Horwood replies to dim 11 

Bain, ii. Poster 

Draper 1 > 

Gregory. .1. W 786, mi 

Hatch, K. 11 :•:«. 

Knox, Hook, and Lett 1st; 

Llndgren, Thomas. Bain, and Hatch J'.<7 

Mellor, E. T H8 

Rtokard, T. A 158 

Rand, cyanide consumption 

1 Hist prevention on the, 1 :» 

Earthquakes 148 

Par Kast, d. vt-lnpiiKiit till 

Figures for six months 

Gold production 526, 662 

Ditto Editorial.,.. 7^7 

Hydraulic stowing in gold mines.. B. C. Gullaehsen . . . . 801 

Impression of the 111 

Industry of the Wltwatersrand 

T. A. Rlckard. Editorial... J n 

Labor 

Labor problem Editorial .... 24 1 

Life of Editorial 2 I 2 

Mines 1 1 : 

Modderfontein group of mines . 1 '■'• 

Ore hoisted 864 

Sanitary conditions on the Editorial ... ' 68 

Rand Mines. Ltd., company report ::"7 

Rathfon Reduction Works Co., Washington 233, 436, 587 

Raub mine. Federated Malay States 842 

Ray Consolidated Copper Co., Ray, Arizona. .122. 208. 313. 

■127. 458, 694, 89S, !m;:i 

Company report 269, B20 

Rea mine, Porcupine, Ontario 123 

Read, Thomas T...Lake Superior copper mining-, present 

and future — I 871 

Read, Thomas T. and M. Carleton ... .Petroleum, gas. and 

brine wells of Ssu-chuan, China 629 

Reading for culture Editorial.... 41 

Real del Monte, Pachuca, Mexico 580 

Real estate in London Edward Walker. ... H) 

Recovery calculation formula 529 

Of gold in dredging Charles Janln.... 717 

Red Butte Mining Co.. Nevada 697 

Red Ledge mine, California 114 

Red Metal mine. Idaho Ill 

Refinancing Natomas Editorial .... 2 

Regrinder. Pan as a William S. Mann..., 963 

Reinohl process Editorial. . . . *30 

'Rapid cyanidlng apparatus' 423 

Rejuvenating the ehloridizing roast 

F. Sommer Schmidt.... 324 
Relative natural and commercial scarcitv of the metals. . 

Edwin C. Eckel 182 

Release dates Editorial .... 940 

Report of committee on revision of mineral land laws... 

E. B. Kirbv. . , , 869 

Of Selby Smelter Commission 947 

Republic Consolidated Mines Corporation, Washington, in- 
corporated 862 

Republic Iron & Steel Co., Hartford mine, Michigan 596 

Republic Leasing Co., Washington 233 

Republic mine. Republic, Michigan, Method of mining. . . 

R. B. Wallace. . . . :>2T> 

Republic Mines Corporation. Republic, Washington 436 

Present ownership 504 

Reserve Board, United States, and Thomas D. Jones 

Editorial 167 

Respiration, artificial 765 

Revenue mine, Colorado 931 

Revision of mining law W. F. Collins. . . . 453 

Ditto Clarence K. Colvln.... 106 

Ditto C. J. Frv 21 

Ditto G. L. Sheldon .... 259 

Of mining law again Editorial. ... 201 

Of mining law, proposed F. R. Ingalsbe.... 100 

Of mining law, Report of committee. .E. B. Kirby.... 869 

Rezende Mines, Ltd., Rhodesia 959 

Rheostat resistance block, Graham 149 

Rhodesia, amalgamation 188 

Geological Survey report 71 

Gold production 72, 251, SO*. 959 

Small mines 4 1 5 

Southern, mineral production 459 

Rice, George S.. and L. M. Jones. .. .Explosion test at the 

experimental mine ^Ti 



22 



MINING PRESS 



Vol. 100 



804 

503 
462 



185 



r.im 



Page. 

i da pulaator rlfh> 316 

Rtckard, T. A As war looks in London.... 

320, 362, 394, 12 i. 172, r. 4 7. 868 

Ditto Industry <•( the witwatersrand. Editorial. .. . 211 

I M 1 to North Star, Grass Valley, Editorial. . . . 544 

Ditto Persistence of ore at Kolar...; 956 

. > * < t at the St. John del Key. . . . 985 

niitM. . 1:. ,n.i banket, Horwood replies to tfsctmslon. . . . t^2 

A Valley mine riuh 117 

Rlftle, i 316 

Right I nea ' '•>.. Ontario 779 

ftlndgc. 1 r Fred H Big returns on an investment. ... 712 

Rio Tim. * Co., Ltd., Spain 615. 773 

k Farm and A. S. & R. Co 537 

ier 430 

natlng tiie chlorldlzlng 

F. Sommer Schmidt.... 324 

oratory 786 

llobblns. Frank, death ol 78 

R rts, •; g€ K, and National City Bank. .Editorial 710 

1 ■ . ( ry, death of 695 

...Methods of taking mill-head samples.... 183 
Robinson Deep Gold Mining Co., Ltd.. Rand, sand filling 

803. 

>n Gold Mining Co.. Ltd.. Rand, company report... 

Consolidated Mining & Milling Co., Nevada.... 

i is Mining Co., Nevada. 116. 

• r .Mni'-s Cm.. Kast Rochester. Nevada 

76, 116. 425. 462. 823, 1009 

ESxtei 116 

taver Mining Co.. Nevada 1009 

And Mexican Gold A Silver Mining Co 462 

Roohford-wyomtng Oil Co., South Dakota 

Rock Don In new mining districts 

C T. Brodrick 

United States guarry production 

Ro< k 1 ulnfnoj < :e„ « Oklahoma 

Rockland mini Pittsburg-Dolores Mining Co. 

Rocks, Ore deposition In and near, by meteoric 

waters Andrew C. Lawson. . . . 

Rocky Mountain phosphate deposits. Origin of the 

Eliot Blackwelder 987 

Roessler AH Chemical Co 826 

nlde situation 86 J, 668, 694 

tnlde manufacture Editorial.... 391 

Austin ]■'... Secondary Bulphlde enrlchmenl oi 
copper ores with special reference to microscopic 

study 680 

Roll shells, Steel James c. H. Ferguson.... 809 

nel, < Solorado 194, 810, 884, 461. 777 

Rope lubricator, Automatic 980 

\\'h ameter 815 

nduras, Central America 

' ii-i <»r cianiiy -onipany. . .E. H. Leslie... 

Ids, New Zealand 1004 

pressor 624 

l Mountain Mining Co., Nevada 

Formed 233 

Gold Mines Co., Angels, California 699 

< irganu ei i 

Royal mine, HLodson, California 1006 

Royal mint Londoi requirement 378 

production o»7 

Ruby 1 i Mines. California 74 

Ruhl, Ituatlon 920 

Rale and Level, Combination 1 ket 542 

u m production 935 

iwn mine, Ketchikan district, Alaska to 

Russia, alboll tro latum "U 

Copper production 1 go 

aging 971 

971 

Kyshtlm Corporation 77" 

Lena Goldflelds sos 

Map ol part 973 

Mines ■• ■ t 

<S 3 5 

Platinum 1 1 1 B4fi 

■ 1 n 'mi production 942 

Slssert mine 772 

saky Coppei Mine, Ltd 772 

W8 gi 971 



Ian Gold Mining Co., Siberia 





Rutlle, Vlrgl lion ,\ 

s 

Saeger charging machine 

New York 

| Mines. . . 
Editorial 

California Editorial 

A Hecla 

Arizona 

mines. Lake Superior district 

Mo* Ifornla 

Editorial 

lir, smart. islts!! . . 

st Elmo Mining A Milling Co Coloi flo 

Ltd., Brazil 



.....'[ 

Iho mine '.'.'.'.',.'.'.'' 

Morro Velho mine, Persist 

„, . , T. a_ Rlckard 

Of air anil rock 

Ltd ....*. 27 

dins mine. Rotation on quicksilver ores. 
^ t . r , „ " ! '»i- • • ■ 

! 10.. Missouri « 

Holmes suit Ed 

g A Refining Co,. Mlssotn 

nine 

1 1 f mi nia 





.;-. 1 
224 



137 
1005 

360 
239 
942 

617 
608 
930 

41 

243 

461 

■ 

S7 



985 

67 

575 

889 
981 

808 



Page. 

Salmon River Power & Light Co., Washington 370 

Salt. Alsace-Lorraine production 451 

California production 929 

Michigan production 705 

Ohio production 664 

Petroleum, and pas wells of Ssu-ohuan, China 

Thomas T. and M. Carleton Read.... 629 

Rock, Ireland production 552 

United States production ' 4L'S 

Salt Lake meeting of the Institute 301 

Salvador, Central America, Butters Salvador Mines Co... 

648. 798. 95: 

Imports and exports . 79:' 

Mineral resources 798 

Salvador lease, Tintlc, Utah 117 

Samples, mill-head. Methods of taking. .. Lloyd Robey.... 183 

Sampling and assaying Cobalt ores 605 

Mine 567 

Sand and gravel, Oregon production 705 

And gravel, United States production 212 

And gravel. Virginia production 333 

And gravel, Washington production 77 

Killing in Rand gold mines B. C. Gullachsen . . . . 801 

Filling, origin of Editorial 791 

Glass, California production 929 

Table. Delster double-deek 101 i 

Be nd Queen mine. Western Australia 853 

Sandstone, California production 929 

Washington production 77 

San Fran cisco mint, bullion received 389. 781. 910 

Mint, operations ...80, 251. 353. 634 

Sanitary conditions on the Rand Editorial .... 168 

Sanitation work at Cuban iron mines. .Charles F. Rand.... 213 

San Juan Metals Co., Colorado 822 

San Poll Consolidated Co.. Republic. Washington 31. ",\ 

Mill. Republic. Washington 437 

Santa GertrudlB Co.. Ltd.. Pachuca, Mexico 154. 889. 931 

Company report 426. 782. 1010 

Finance conditions 162 

Isabel Mining & Milling Co.. suit. California 194 

Santo Domingo, imports and exports 792 

Resources 798 

Santo Domingo mine, Peru, ore treatment 181 

Saxony, bismuth production 590 

Schmidt, F. Sommer Platinum deposits of Germany's 

paleozoic, translated from P. Krusch 879 

Ditto Rejuvenating the chlorldlzlng roast. . . . 324 

Schumacher mine. Ontario 696 

Scientific management In the German industries 

H. N. Stronck 648 

Scottish Gympie Co., Queensland 616 



Graphite in ores 

Scran ton mine. Utah 

Scrap metallurgist Editorial . . 



60S 
117 

85 



Scraper, bottomless 954 

Secondary enrichment. Laboratory study of .. Editorial ... . 433 

Ditto C. F. Tolman. Jr 649 

Sulphide enrichment of copper ores with special refer- 
ence tO microscopic Study Austin F. Rogers.... 680 

Seeking South American trade — a word of caution to home 

folks Editorial 789 

Bel by Smelting & Lead Co.. fume commission 930 

And fume commission Editorial.... 939 

Report of Selby Commission 947 

Ditto Editorial 939 

Ive mining of orebodles Douglas Waterman .... 54 

Selling mining properties Editorial. . . . 628 

Seminole mine. Georgia 953 

Seneca-Superior Silver Mines, Ltd., Cobalt, Ontario 

169, 660, 858 

Setin < '"a. .-ntrating Co., pan motion concentration 468 

S 1 Mining CO., Korea 77. 352, 426. 578. 779, 977 

Servla, copper production 120 

Seven Troughs Coalition Mining Co. Seven Troughs. Nev . 

31. 351. 425, 503. 619. 778. 894. 1009 

Seward Bonanza Gold Mines Co 341 

Shaft timbering. Mesabi range, Minnesota 

P. B. MacDonald. . . . 690 

Shamva Mines. Ltd., Rhodesia 72, 265, 808, 919, 959 

Shanghai Dock & Engineering Co., Chinese mechanics. . . 729 

pper Co., Metcalf, Arizona. 122, &08, 348, 165, 501, 530 

Company report 269, 792. 1006 

Shan tun p Min'ng Co.. Kiaochow, China 460 

Sharp mine, Utah 117 

Copper Co.. Blsbee, A rlzona 

122, 208, 813, 572, 694. 698. 892, 1006 

Sheave, well guarded 882 

Sheldon, G. L Revision of mining laws.... 259 

Ships. American-owned foreign, and freight situation.... 

Editorial 317 

Government-owned merchant Editorial. . . . 

Shockley, W. H Gold mining on the Amur.... 249 

stamp-battery as dies 496 

tube-mills. H. W Hardlnge 218 

Shoveling machines at Flat River E. H. Leslie.... 809 

Showers mine. Utah 117 

Sia*n, wolfram production 758 

Siamese Tin Dredging Syndicate 16 

Siberia. Gold mining on the Amur....\V. H. Shockley.... 249 

Gold production 114 

Orsk Goldflelds, Ltd 686 

Upper Yenesei vallev and adjacent Mongolia 687 

Ditto Newton R. Knox .... 922 

Slderlte and sulphides In LeadvlUe ore deposits — T. II 

Philip Argall 50, 128 

And sulphides in Lead vl lie ore deposits, a correction.. 

Philip Axgall 14S 

Siebenthal, C. E Midyear spelter statistics... 314 

Ditto Zinc situation. ... 354 

Nevada Consolidated Mining Co.. Idaho 350 

Silica. United States production 692 

Silver, Alaska production 820 

Aluminum alloy 415 

Amalgamation of ores 300 

And gold alloys 188 

And gold, Weighing minute spheres of. .J. I. Blair 526 



Vol LOS 



MINING PRESS 






Silver and w . It] 

lion 
Hulllu ipaell) 110 

«05 
705 
II* 

».-.:. 
Ill 



rtlon ..!«». 

InplInK on.) UH)lli|l 
i tl.-ll 



.Ml, 



.til, 



■hi .tat,-, production 
Honduras production 
Idaho production 

..I ore.. Smelting cost! anil prior* tol 

I. B An. iin 170 

\i.irk.-i condition! 160 

Montana production 30 

. i.i production 42 1 

\. u If .vi... production 

Nt vv Bealaad production lis. 919 

Ontario production ji. i it. ««.i. *:■■ 

- in production 198 

and mt'talllrs 651 

Porn production 

S3. 7», lit, 

161. 197. lit. 274. 313. 363. lit, (30. 680, 

Oil. 66'.'. 701. 711 III lit, 114, »78, 1011 

vv.u Editorial . . . . 31" 

■"i.iini production 961 

Relative rmturai and commarclal scarcity <<( the metals. 

Edwin C. Soke] ... 182 

Ldor exports 648 

Shipments Bit 

>i mil 

Texas production , 819 

Unlt>-,1 Statee export! anil Import* 239, 5*0. 114 

rniii-.i statca production 861 

Utah production 705 

Washington production 77 

Wyoming: production 117 

Silver Cable mine. Mu]]..n. Idaho 

Silver King claim. Yukon 87, 537 

Sllv.-r King Coalition Mine* Co. Utah 463. Ill, 1010 

Company report 159 

Electric holel 390 

v Silver King Consolidate,! Mining Co.. Utah 702, 1010 

Silver King Consolidated Mining Co.. Park Cltv. I'tah 

233. 463. 824, 101 

Solon Splro and shareholders 620 

v Silver King Coalition Mines Co.. Utah 7"2. 1010 

Silver Lake mine, Colorado 384 

Silver Pick Consolidated Mines Co.. Nevada 310 

Simmer & Jack Proprietary Mines, Ltd.. Transvaal 901 

Sand lining 803. 804 

Simmons, Jess,- Electric power at llnmestake. . . . 374 

Ditto New Reliance milt practice, with par- 
ticular reference to continuous decantatlon 722 

Simple mine accounts 60 

Simplification of gold ore treatment. .Noel Cunningham. ... 19 
Sintering ores, Muntlngton-Heberlein v. Dwlght-Llovd pro- 
ceases 37s 

Slsserl Estate mines, L'rals, Russia 772 

' tompany report 224 

- '-Whit. Horse mining district 

Emll Edward Hurja.... 609 

Ske.n-Lechner property. Alaska 342 

Slag, cyanide. Crude method of disposing of 

Arthur Feust 142 

Notches, Melting out 994 

Slate. Virginia production 333 

Slime concentrator. Anaconda 238 

Settlement and water viscosity 608 

Slings .and other hoisting accessories, storage of in mines. 415 

Small stamp-mills 863 

Smelter fume litigation (see fume) 

Lampa copper. Santa Lucia. Puno. Peru 

Francis Church Lincoln.... 553 

tagement of a country Editorial.... 431 

i'itt" Herbert Lang.... 440 

1 >!-•■ contracts and the Herbert Lang. . . . 492 

Smoke. Utah, new decree Editorial.... 865 

Wales -/Inc. plans Editorial. ... 981 

Smelters. European countries 354 

Smelting. Colorado Editorial.... 941 

Copper, in Canada 689 

Costs and prices for silver-lead ores . . . . L. S. Austin.... 170 

Electric, of iron ore. Fluorspar In 

Robert M. Keeney. ... 335 

Japan Editorial 359 

Low-grade flue-dust 300 

Zinc, England 304 

Zinc. Kansas and Oklahoma 530 

Zinc, practice of Middle West 

E. H. Leslie 44. 136, 204. 280. 395. 475 

Zinc. Progress In Editorial.... 469 

Zinc-retort 300 

Smith. George Otis, and American Institute of Chemical 

Engineers. Philadelphia 906 

Smith. Warren D..Talsho national exposition at Tokyo.... 490 

Smlthsonite, English and American meanings 

Editorial 940 

Wisconsin. Platteville district 693 

Smokestacks, brick, cracking and weathering 149 

Sm.-ot. A. M Gold and silver ores and metallics. . . . 651 

Smoot silver bill 353 

Smuggler-Union Mining Co.. Colorado, flre 777 

Welfare work L. F. S. Holland 747 

Snake Creek tunnel. Utah 352 

Snow Flake mine. New Mexico 775 

Snowstorm Mining Co., Larsen. Idaho 76. 350 

Company report 236 

Soapstone. California occurrence 919 

California production 929 

Virginia production 605 

Socorro Mining & Milling Co., New Mexico 733. 890. 932 

Soda. California production 929 

Sohnlein. M. G. F Economical sliming in 

grinding pans 692 

Solution control in cyanidation A. W. Allen.... 527 



Solution control in cyanlggtlon i: M Haml 

nldlng, Titration result! and 

Ultra! It I. 
• nllltiK dump. In the I'rruvlnn And.-. 

II. .w iitii. i Bancroft 
8on« of I'.waiin Leonora, Western Australia... 

166. 183, 49», II 
South Africa, diamond mining ... 
KulnliKa mine. 

South America, Coppei Syn 

and foreign capita i . 
Trade del elonment with . 

I'ra.l.. po.Nlliilltlc. In 
I'll! 



Editorial 



Editorial. 

Editorial 
Editorial revlea 

. ; v. 



Trade, Booking a word ,,f caution to home folk. 

Editorial 

Sooth Australia lc.,1,1 pi OdUCtlon 

Sooth i ■ ,i ,,ii n a metal production 

South Dakota, amalgamation mil). 

.v 0,1,1 Bnalnas! Club, Heidelberg proporty 

Qold production, nia.k mil* ,. 

lllll City tin 

Mills, potassium and sodium cyanide consumption 

Mineral production 

Mineral production, Hhok Hill. 

South Beds Mining Co.. Alia, Utah 

Company report 

South Kalgurll Consolidated Mines Co., Ltd., Western Aus- 
tralia 

South Utah Mines & Smelt, -is. Ncwhou.e. Utah 

Southern Montana railway 459. 

Spain anil Portugal copper production 

Bismuth production 

Mining In 

Potash resources Editorial. . . . 

Sin- Iters 

Spanish-American Iron Co., Cuba.. Sanitation work 

Charles F. Rand 

Spnssky Copper Mine, Ltd.. Siberia 122. 

Specie movements 

Spelter manufacture and properties. . .George C. Stone.... 

1 See zinc) 

Sprague Electric Works, electric winch 

Springfield Tunnel & Development Co., California 

Springs mine. Rand 

Square-set ore chute 

Stabilization of the copper market C. S. Burton. .. . 

Ditto L. Vogelsteln. . . . 

Stamp battery, king-posts 

Battery shoes as dies 

Milling, Large versus small stamps Editorial.... 

Milling, screens 

Milling, Steam stamps from the gold miner's point of 
view 

Mills, curiosities In 

Milts. Improved cam for Arthur B. Foote.... 

Mills. Small 

Stamps and tappets 

Large versus small Editorial.... 

Steam, from the gold miner's point of view 

Algernon Del Mar.... 513, 

Ditto H. W. Hardinge 

Standard Chemical Co radium production 

Standard Silver-Lead Mining Co., Ltd.. New Denver, British 

Columbia 77, 117. :iifi. 4 26. sot. 

Stanford F. E Electric hoists In the Cleveland- 
Cliffs mines 

Star Silver Lead. Idaho, v. Forest Service. ... Editorial ... . 

State geologists Editorial .... 

Status of the metal market Editorial .... 

Steam power plant efficiency 924, 

Stamps Editorial .... 

Stamps from the gold miner's point of view 

Algernon Del Mar. ...513, 

Ditto H. W. Hardinge.... 

Steel, Donald Valuing placer ground.... 

Steel. France production 

Ingots and castings, United States production 

Rails, Pennsvlvania Railroad Co 

Roll shells James C. H Ferguson. . . . 

Steinhart, O. J Production and uses of tungsten.... 

Steptoe smelting plant. Nevada, lower-grade flue-dust 

Stewart. C. A Study In applied geology. . . . 

Death of 

Stewart Bros, mine, Alaska 

Stewart Mining Co.. Stewart. Idaho 77. 350. Cm, 658, 

And Heinze shares 

Company report 

Fight for control 

v. Bunker Hill & Sullivan 

v. Ontario Mining Co., Idaho 

Stocks and war 

Stone. George C... Spelter manufacture and properties.... 
Stone industry, California production 

Oregon production 

Quarried. United States 

Virginia production 

Stoping. Michigan method 

Storms. William H Eruption of Mt. Lassen .... 

Stout, V. A. . .Hardinge hall-mills and cemented gravel. . . . 

Straits Trading Co., company report 

Stratton's Independence, Ltd.. Cripple Creek. Colorado 

75. 231. 423. 575, 658, 735, 822. 931, 
Strike. Butte, Montana 

Lake Superior district, cost of militia 

Stronck. H. N Scientific management of 

German industries 

Study In applied geology C. A. Stewart 

Suan Mining Co., Korea, Geological report on the Collbran 

contact D. F. Higgins 

Success Mining Co.. Ltd.. Wallace, Idaho 

Sugar refining and bagasse 

Sulitjelma. Norway 

Sullivan Machinery Co. air-compressor, motor-driven port- 
able 

Auto-traction drill rigs 84, 






789 

III 

IS] 

100* 

4 63 

pi in 

IJn 

510 

56 

I :l 
351 

213 

77: 

754 

276 
194 
112 
768 
7 ..■• 
346 
1 19 
496 
61 i 
878 

:, 1 :: 
7 0s 
955 
863 

5 67 
51] 

963 
884 
443 



1010 

446 
903 
S19 

2)li 
964 
509 

963 
884 

845 
184 

7i>:. 
60S 
809 

64 
800 
330 
505 
::ll 
'.::i 
310 
350 
190 
7:::. 
124 
65! 
77 1 
929 
TIL". 
765 
333 

IS 
1 13 
430 



ions 
57 2 
117 

618 
330 

95 
350 

S17 
l.,7 

666 
328 



24 



MINING PRESS 



Vol. 109 



Page. 

SulUva |W 

pany 828 



"Water piston' drill 876 

Sulphide an-! Illfl ore deposits — I, II 

Philip Argall 50. 128 

And slderlte In Leadvllle ore deposits, a correction.... 

Philip Aryan 148 

Enn ry. Of copper ores with special ref- 

:« to microscopic study. .. .Austin i i 680 

tment at Tuanml mine, Western Austral! 

! arsenic process for treating 149 

i poratlon. Central Zinc Co 304 

Sulpho- cyanides In cyan Idat Ion Hit mi R. Layng .... 481? 

Sulphur oil 188 

iuctlon editorial 87 

is 

posits of southwestern. ..Clyde M. Beckei ... 386 

United Slates prod tict Ion Editorial. .. . 87 

White Island deposit Editorial. ... 903 

W. D. llornaday. . . . 913 

nd petroleum refining 964 

Suroltoma mine. .Japan Editorial... . 359 

Summei ifs urlce tion at 

the Porcupine Crown mines 

Sun and earth, masses of . . .". 22 

Sunbeam mine. Utah J 17 

Sunnyslde mine. Sherlock, California 74 

Bunnyslde Mines, Eureka, Colorado 461 

Sunset Mini n Nevada 619 

Superior A Boston Copper Co., Copperhill, Arizona 

114, 229. 268 

Com pa n - report 973 

Pittsburgh Copper Co.. Arizona 572 

Superior Copper Co., Michigan 232, 266. 736. 857 

Swansea Consolidated mine, Utah 1 1 7 

Sweden and Norway copper production 120 

Mining;, and war 

switch, oil. New high- voltage 166 

Switzerland, South American trade 792 

Pydvaranger property, Norway 924 

Symmes, Whitman Discovery of California potash.... 883 

ds Brothers Co.. disc crushers 708 



Table, sand. Double-deck Deleter 

Tailing, cyanldatlon, victoria. Australia 

row treatment at Hunker Hill. .Frank Lawranc* 

lumps In tin Peruvian Andes, Some 

Rowland Bancroft .... 

Willow Creek district, Alaska, Cyanldlng 

J. T. Terry. Jr. . . . 
Talsho national exposition at Tokyo .. Warren I >. Smith.... 

apstone, ; . I ■ ■ iductton 

Talisman mine. Karangahake, New Zealand 614, 

rack &• Cust< lated Mining Co., Idaho 

Tamarack Mining Co., Calumet, Michigan 

i 82, 656. 817. 

Tanganyika Concessions. Ltd., Progress and working 
Tanganyika copper mlnei ..Robert Wllllaim 



d si a tups 

Taquah Mining & Exploration Co., Ltd., Wesl Africa 

217, SI I. 
i. dredging 

Gold production 

Hydro-Ele< ei & Metallurgical Co 

Ml. Lyell mine 808. 

Tin mining In James B. Lewis.... 

Tauplrl Coal Co., New Zealand 

Ralph's mine explosion 

Taxation, mine, and the conference of tax officials 

H. A. E. Chandli r 
Mining and co-operation of mining men. .Editorial ... . 

Taxes, Getting land for, In California 

Tea leaves and prusslan blue 

Teck-Hughes mine. Klrkland Lake, Ontario. .. 233. 696, 970. 

And Nfpisstng 

Telephone, 'wireless,' Fife Coal Co.. Scotland 

Temlskaming & Hudson Bay Mining Co.. Cobalt. Ontario.. 

117, 159. 196. 702. 738. 779. 

Temlskaming Mining Co., Ltd.. North Dome property 

Temperature, deposit formation 

Tennessee, coal production 

Metal production 

Tennessee Coal. Iron & Railroad Co.. Birmingham. Ala- 
bama, mosquito elimination 

Tennessee Copper Co., Copperhill. Tennessee 

122. 208, 311. 458. 895. 969. 

Tennessee mine. Chloride. Arizona 

Terry. Jr., J T Cyanldlng tailing in the Willow Creek 

district, Alaska 

Teeors mine. Utah 

celestlte deposits 

Cement production ! 

Coal production 

, natural, production 

Tehthyol 779 

Iron 

Iron its ..........'.'.'.' 

on 

Mint ....!!.!! 

Mineral reference book 1! 

Mlnln 

ictlon .86, 466 

Fortland cement production 

after, Cyan id 

Sulphur 

! n . .Clyde M. Becker! ! '. '. 

Thawing frozen gravel, Yukon Gold Co 

Thermit weld of broken era 

Thistle-Etna Gold i , , 

Thomas. Klrhy..! Htorwdbd replies to discus- 
sion 



1014 
567 
918 

805 

989 
4 90 

1003 
350 

874 

487 

E67 

9 5 5 

693 

198 

18 

876 
65 

1002 
765 

^::s 
831 
634 
815 
1004 
846 
108 

896 

267 

601 

80 

38 



978 
1006 

989 
117 
927 

466 
80 
166 

f >-:: 

927 
927 
819 
466 
577 
818 
9 :: -. 
38 
648 
927 
296 
668 
594 
969 



554 
106 

174 

■ 

702 

. 
180 



Page. 

Thompson, William B., activities 151 

And Federal Reserve Board 1002 

Thompson-Quincy Consolidated Mining Co., Park City, 

Utah B24, 895, 1010 

Thomson. II. t;., and 11. A. Morrison Operation of the 

1 filter in the Globe mill 

Thornhiil. Bryant K Value of dredging ground ... . 

tagonla district. Arizona. P. R. Prober t. . . . 

Thuni process, bismuth und copper separation 

Tiffany turquoise mines, New Mexico 

Tightner Mines Co., Alleghany, California 

Timber Butte Milling Co.. Butte. Montana 461, 

Timber Humes 

Timbering contest. Blsbee, Arizona 114 

Tin and war 347. 701 

Australia deposits map *;."< I 

Bolivia deposits Editorial ... .585. 791 

Building a placer-mining dredge with electric power- 
plant In Portugal H. G. Peake... 522 

Domestic production. Attempts at Editorial 790 

1 hjtoh East Indies production 

England smelting Industry and war 119 

lerated Ma lav States exports B44 

Federated Malay States industry 388 

i rated Malay States Industry and Australian Jam.. 15 

Federated Malay States, mining in the 

E. J. Vallentlne 178 

German Southwest Africa exports 299 

In the United States Editorial.... 170 

Mining and reduction and writers 651 

Mining at the Brlsels, Tasmania 248 

Mining in Tasmania James B. Lewis. . . . 65 

Nigeria production 

Prices.. 34. 35. 80. 120. 161. 198. 199. 235. 274. 313. 353. 887, 
388, 427, 465, 539. 540, 580, 622, 704, 739. 740. 781, 826, 

860, 898. 899, «934. 978. 1012 

Prices and war 

Prospective growth in output of 333 

Queensland production 961 

Relative natural and commercial scarcity of the metals 

Edwin C. Eckel 1S2 

Transvaal and low prices 500 

United States imports 647 

United States production B61 

Western Australia production 381, 647 

World production 

Tlntlc Coalition Mines Co., Utah, formed 

Tintlc Standard mine, Utah 



::; 
117 



Tires and motors 567 



Titanium Editorial. 



983 



6nr, 
217 
808 

•519 

394 

TOG 
501 
191 
929 
15 
15 



1009 
7-1s 
577 



1009 
536 
701 



United States production 861 

Titanium Alloys Manufacturing Co Editorial.... 983 

Tltantlc Gold Mining Co., South Dakota company report.. 267 

Titration results and solution control In cyanlding 

Haral R. Layng.. ; . 

Results in cyanidatlon A. W. Allen..*.. 

Titus chlorlnation process 

Tolman, Jr.. C. F Laboratory study of secondary 

enrichment 

Tomboy Gold Mines Co.. Ltd., Colorado. . 231. 461. 658, 700, 

773. 822. 

Company report 

Tombstone Consolidated Mines Co., Arizona 

And Phelps, Dodge & Co 28, 

Tom Reed Gold Mines Co., Oatman, Arizona .. 114, 460, 734. 

Tmm'kiili compound. N. L.. Victoria, Australia 

Tongkah Harbor Tin Dredging Co., N. L., Tasmania 

Tonopah Belmont Development Co., Tonopah. Nevada. . . . 

116, 159, 351, 385, 425, 462, 503, 577. 622, 659. 702, 737, 

779, 823, 895, 898, 97S, 

Surf Inlet mine, British Columbia 

Tonopah Cash Boy Consolidated Mining Co., Nevada 

Tonopah Extension Mining Co.. Nevada 31, 68, 76, 116, 

159, 232, 311, 351, 385. 425, 577. 619, 702, 737. 823, 895. 

932, 

And Tonopali Mining Co., Nevada 

Tonopah Merger Mines Co., Nevada 31. 

Company report 706 

Tonopah Mining Co., Nevada 31, 159. 232. 311. 385, 503, 

539. 659, 702. 737. S23, 976. 978. 1009 

And Panama Mining Co., Nicaragua 732, 780 

And Tonopah Extension Mining Co 536 

Nicaragua property 578, 1011 

Reno mine-rescue contest 455 

Tonopah Placers Co.. Colorado 157, 735 

Breckenrldge dredges 618 

Toronto, Ontario, harbor, sand 30m 

Torpedo-Eclipse property, Colorado 350 

Tough-Oakes. Ltd., Klrkland Lake, Ontario 

31. 159. 233, 267, 660. 696. 

Trade Commission 

And mining Editorial. . . . 

Trade, Developing foreign Editorial .... 

Foreign Council Editorial.... 

Possibilities in Latin America Editorial review .... 

Ditto G. W. Wepfer 

Tramway, aerial, Venezuela 

Locked coil wire rope 1001 

Transvaal and Rhodesia Estates, Rhodesia 969 

Gold mines and war 946 

Gold production 72. 614, 1001 

Johannesburg rainfall 1001 

Production of companies 910 

Tin mining industry and low prices 500 

Traylor Engineering & Manufacturing Co., Anaconda slime 

concentrator 23S 

Treadgold placers 848 

Treasure Mining & Reduction Co. foreclosed, Mogollon, 

New Mexico 

Treatment of sulphide ore at the Yuanmi mine, Western 

Australia 

Trego, Frank H.. Accident prevention v. compensation 

Trethewey Silver-Cobalt Mine, Ltd., Cobalt, Ontario 

159, 702, 1010 
Trlfonoff and Gardner process, sulphide ores of antimony 

and arsenic 119 



VI 

658 

2 79 
£78 
168 

; g 2 

B85 
964 



97 6 



995 
691 



Vol 109 



MINING PRESS 






osolldat* d Co 

rrlnltj Cmllfornlu 

■ 

produ. t 

■ 

reduction . 

l j 
M - 
Ditto u i-i inc« Catlln 



Llnei \. u , , ; _m m , | 

\V It Ulvtli 

it w Hardin 

i ublni r.-i boilers j] 



California, San Bernardino oounty 

England and war lit 

Production anil uses of Stelnhart... 

South i takota production 

Unit, production 

Tuniifl. Hooaao, Inlying, and it II taught 

P, is McDonald. ... 

Tuolumne Copper Mining Co 

Tuolumn« Deep Channel Mlninn Co., California 

Tuolumna mine, Montana ., ,<> 

Turkey, copper production 120 

Turner »»U Co., California 

Twin City Mining Co., Missouri ;;i 

Tyee Copper Co., Lad yam I th. British Columbia 70, 688 

Type, email 'Rolling Stone'.... is; 



i tuii i . , Bingham, ■ I 

Ditto 

Editorial 

Sunday holiday 
Utah Fuel Co . <M. ai Cre« k mil ■ 

centrntlng Co Utah 

Mil. inn Co., mill, I ■ lor, N..i tn c 

An.ii . w Wall 












3:1 



Umarl Gold, Ltd., Philippine Is lands :>:«i 

Uncle Sam mine, Utah 117 

Underwriters Land Co., Joplln, Missouri 458 

Union Baa In Ulnlng Co., Arizona 229 

Union Consolidated Ulnlng Co.. Virginia City, Nevada. 385. 1009 

Union Conatruotlon Co., new portable drill 624 

Union Hlii Mining Co, California 584 

Union of South Africa mineral production 72 

Unions, tabor i.rid liberty Kdltorlal. . . . 625 

Labor. Butt**. Montana 189 

Labor. Huti.. ami mining companies Editorial.... 481 

United Copper Co.. Chewelnh, Washington 687, 660, 933 

United Globe Mines 6s 

Unite. 1 Gold Mines Co., Cripple Creek, Colorado 75 

W. P, H. mine 535 

United Ulna Workers of America and Western Federation 

of Miners 576 

Ditto Editorial 1 25 

United Ore Sampler, Utah 117 

Tutted States Bureau of Mines — See Bureau of Mines. 

United States, foreign trade Editorial.... 239 

Industries 024 

Mineral products imports 524 

Mineral reserves and war Editorial .... 391 

Production statistics — See production statistics. 

South American trade 792 

Tin in Editorial 470 

United States Geological Survey field men and identification 

cards Editorial. . . . 667 

'Mineral Resources of the United States' and Congress" 

appropriation 109 

'Our Mineral Reserves — How to Make America Indus- 
trially Independent' Editorial. . . . 391 

Potash and the Samuel H. Doibear 883 

Production statistics — See production statistics. 

United States Metals Refining Co.. nodulizlng flue-dust... 223 

United States Smelting. Refining & Mining Co... 122, 530. 8S9 

Alaska Ebner property 153 

Needles Mining & Smelting Co.. Arizona 1006 

United States Steel Corporation, Michigan iron-ore dis- 
tricts and P. P. I. E 889 

United Tintic Mines Co.. Silver City. Utah 117 

United Verde Copper Co., Jerome, Arizona 122, 269 

Copper Giant mine 534 

United Verde Extension Mining Co.. Arizona 534, 657 

United Zinc Co.. Joplin. Missouri 457 

Sludge plant 535 

Upper Yenesei valley and adjacent Mongolia 

An occasional contributor.... 687 

Ditto Newton B. Knox 922 

Upper Yukon: Circle City, Eagle, and Woodchopper 

E. E. Hurja 887 

Uranium. United States production 648 

Uruguay, imports and exports 792 

Mineral resources 796 

Use of herringbone gears to drive Hardinge mills 759 

Of link-belts 40 

Utah. Bald Hills gold district strike 272 

Bingham Canvon lead 191 

Fortuna gold district 620 

Great Salt Lake salinity 567 

Low-grade ore treatment 25 

Map 895 

Metal production 705 

Mines dividends 824 

Mining and metallurgical industries exhibit 702 

Mining In D. C. Jackllng 301 

Mining industry 824 

Ozocerite 693 

Park City mines 824. 1010 

Park City mines bournonite occurrence 463 

Portland cement production 38 

Salt Lake City Stock Exchanga 976 

Silver-lead ores, smelting costs and prices 

L. S Austin. . . . 170 

Smelter smoke decree Editorial.... 865 

Snake Creek tunnel 352, 426. 620, 779, 976 

Tintic district mines 77, 117. 386. 660, 895, 976 

Utah-Apex Mining Co.. Utah 933 

Company report 273 

Utah Consolidated Mines Co.. Bingham, Utah.. 68, 154, 195, 208 



Valdei Creak Placet U \iu«ka ise 

v.ii.i..- Creek Power a Ml nee ■*.. 

Vallentlne, B. J Tin mining "> the Federated Ifalaii 

States 

Valuation of dredging ground j 

Ditto ii n Herrlok 

PJ5JO C. s. Kersla ... 

Ditto L .1 Mohl. . . , 

, " 11( " B. Bryanl Thornhlll 

\alulng placer ground R, c Jenntnge.. . 

Ditto Don 

Vanadium and uranium. United States production, 

undy alloy 

Van Roi Mining Co., Ltd., Sllverton, British Columbl 

Van Ryn Deep, Ltd,, Rand 

Veins, True fissure w. Prince Catlln.... 

Vemllla mine. Nevada 

Venezuela, aerial tramway 

Imports and exports 

Mineral resources 

Mining In 

Ventilating fan. New 

Ventilation in the Iron mines of the Lak.- Supei loi d1 trl 

Edwin Higgins. . . . 

Vermont and Pennsylvania metal production 

Mineral production 

Vernal Mining Co., Goldfield, Nevada 

Victor and Glasgow claims, Idaho 

Victor lease, Tintic, Utah 

Victor Power & Mining Co. and Midas Mining Co.... 194, 

Victoria, Australia, dredging 220, 529, 

Dredging and hydraulicklng 

Gold production 

Melbourne district, map of 

Tailing cyanidation 

Victoria Copper Mining Co., Michigan 

Victoria Consolidated Mining Co., Eureka. Utah 

Victoria Falls & Transvaal Power Co. v. Langlaagte Con- 
solidated, Rand 

Victorian state coal mine. Australia 

Victorious mine, Ora Banda. Western Australia 

Village Deep. Ltd., Rand 228 

Village Main Reef Gold Mining Co., Ltd., Rand, earth tremor 

Vindicator Consolidated Gold Mining Co., Cripple Creek, 

Colorado. .75, 231. 270, 423. 535, 575. 618, 700, 894, 931, 

And Granite, Colorado, v. Teller county 

Compressor 

Mill Horace F. Lunt 

Vinegar Hill Zinc Co.. Wisconsin, new development 

Viol, Charles H Production of radium in America. . . . 

Vipond Porcupine Mines. Ltd., Ontario 703, 

Financing 

Virginia, coal production 

Manganese deposits 

Metal production 

Mineral production 

Mineral production, 1913 Thomas L. Watson.... 

Rutile production 

Virginia-Louise Mining Co.. Pioche. Nevada 

Viscosity, water, and slime settlement 

Vogelstein, L Stabilization of the copper market. . . . 

Vogelstein & Co., L., tin statistics 

von Bernewltz. M. W Blasting by wholesale.... 

Vulcan Detinning Co., company report 

Vyver, Francis, death of 

w 

Wade, W. Rogers. .. .Mining district of Pinos Altos. New 

Mexico 

Wages, Russia 

Wagner-Azurite Copper Co., Nevada 536, 

Waihi Consolidated and Waihl Reefs, New Zealand 

Waihl Gigantic Reef Consolidation. Ltd 

Waihi Gold Mining Co., Ltd.. New Zealand. . . .366. 613. 815. 

Company report 

Ore treatment 

Transmission line 

Waihi Grand Junction Gold Co., Ltd., New Zealand. 366. 613. 

Company report 

Electric power 

Ore treatment 

Waihi-Paeroa Gold Extraction Co., Ltd.. New Zealand, 

company report 

Waihi Reefs and Waihi Consolidated, New Zealand 

Walotahi mine, New Zealand 

Waldorf Consolidated Mining Co., Colorado 

"Wales, zinc smelter plans Editorial.... 

Walker. Edward Real estate in London .... 

Wallace, R. B Method of mining at Republic mine. 

Republic, Michigan 

Walz. Andrew. . . .Uwarra mill. Candor, North Carolina. . . . 

Wanakah Mining Co.. Colorado 350, 822, 931. 

Wander Gold Mines, Ltd.. Rhodesia 

War and antimony 369, 

And Calgary, Alberta, oil boom 

And California mining 

And Cobalt mines 

And code addresses Editorial .... 

And copper mining in United States 

And copper shipments 530, 



193 
106 

M.'. 
861 

.... 

I?7 
1 12 

.... 



648 

i..' I 

158 

111 
117 
280 
898 
928 
198 
73 
567 
268 
117 

73 
952 
697 
307 
964 

974 

158 

s;:7 
157 

443 
733 
573 

80 
605 

:is 

605 

33 3 

567 

4 si; 
r.us 
845 
86 
646 
B26 
126 



402 
971 
696 
1003 
613 

i mi- 
les 

180 
149 
1003 
275 
260 
212 

782 
1003 
614 
461 
981 
414 



921 
1007 
959 
732 
386 
379 
345 
709 
382 
615 



26 



MINING PRESS 



Vol. 109 



Page. 

irnleb tin mining r.;jL' 

And cyanide supply Editorial 391 

And gold mining, Porcupine 733 

And Honduras mining 956 

d Lake Superior copper mines 531 

And LeadvlUe district, Colorado 120 

And London Metal Exchange lit* 

And manganese Bditorial . , . , 278 

And magneslte Editorial. . . . 940 

And metals 

And mi new Editoi i I 

And New Zealand mining 1002 

And nickel, Ontario m ■ 

An.l ; us Editorial 

And relief of American citizens in Europe. Editorial 

And, silver 382 

And Swedish and Norwegian mines 591 

And tin 7<H 

And Transvaal gold mines 5 I ■; 



667 



39 i 
282 



868 



600 
888 
876 
144 



And United States business outlook Editorial.. 

And I'nlted States foreign trade Editorial.... 

And United siatns mineral reserves Editorial .... 

And sine situation 36 i 

Aa it looks in London T. A. Rtckard. 

362, 394, 431. IT:'. 647, 

As seen In France 54 

< 'ontrabands 

Effect on Lake Superior copper district 4 1 s 

Effects In Australasia Editorial. ... 171 

England and copper export problem 580, 616. 781, 

772, 827, 926, 969, 1012 

Ditto Editorial 

European lessons Editorial.... 643 

KS and 662 

Zinc. Broken Hill 419 

tpper Co., Globe, Arizona 229 

Wasatch Mines Co.. Alta. Utah 77:' 

Tire 463 

Wash-houses, Illinois coal mines 886 

Washington, D. C., Alaska coal-leasing bill 615 

Leasing bin 615 

Mining legislation 308, 421, 4 98. 65-'. 927, L002 

Mining legislation and war 571 

Petroleum legislation Editorial 126, 191 

Washington, mineral district 577 

Mineral production 77 

Portland cement production 

Republic mines 737. B96 

Republic mining and milling E. C. Morse. ... 4 3.^ 

Ruby district 896 

United States Geological Survey map 895 

Washington Water Power Co., Washington 77 

Power-lines 619 

v. Marsh Mining Co 822. 1008 

Washoe mine, Montana, Waste heat steam generation... 340 

Wasp No. 2 Mining Co., Lead, South Dakota 463, 702, 862 

Waste in mines 496 

Water viscosity and slime settlement 608 

Waterman, Augustus, death of 977 

Waterman, Douglas .... Selective mining of orebodies. . . 5 t 
Waters, meteoric, Ore deposition in and near Intrusive 

rocks by Andrew C. Lawson .... 

Watson, Thomas L. Mineral production of Virginia, 1913. . . . 

Waugh 12-A drill 

Wealth of Nations mine. New Zealand 

Company report 614 

Costs 526 

Wedge mine, Colorado 822, 931 

Weighing minute spheres of gold and silver. .J. I. Blair. . 

Weights, compensating, and wear of stamp shoes 496 

Welch, Max J Mexican labor and its peculiarities.... 597 

Welfare work among mine workers.. I* F. S. Holland.... 717 

Well guarded sheave 882 

Welland canal. Canada 924 

Wellington Mines Co.. Breckenrldge, Colorado *.*74 

Wellman-Seaver-Morgan Co.. First motion electric hoist.. 390 

Wenatchee Gold Mining Co., Washington 779 

Werlnger Mines Co.. California 1007 

Wernicke-Hatcher Pump Co., rotary air-compressor 624 

West Africa, gold production 217, 811. 95G 

West End Consolidated Mining Co., Tonopah, Nevada 

76. 116, 232, 425. 737, $57, 

v. Jim Butler. Nevada 619, 702. 932, 976 

West Hill Mining Co., Wisconsin 467, 

West Kootenay Power & Light Co., British Columbia, com- 
pany report 

West Virginia, coal production 

Gas, natural, production 526 

Ditto Editorial. . . 867 

petroleum production 36. 985 

Pottery production 236 

Western Australia company dividends 614 

Contract work 697 

Cyanide and explosives and war 697 

i leoioglcal Survey 25 

Gold mining, men employed 816 

Gold production 25, 198. 499. 854. 972 

Gobi production decline Editorial.... 667 

Government custom mills 716 

Hoisting accidents 878 

KMsoorlie geology J. L. Connor.... 193 

Kalgoorlie, shaft cages 816 

Labor partv setback 072 

Labor troubles 24. 155. 381 

Labor union proposals 881 

Labor unions and Chamber of Mines Editorial.... 85 

Machinery driving methods 881 

Mine inspection ^ i 7 

Mineral production 381 

Unions and higher wages 853 

Workers' Compensation Act and Insurance premiums.. 378 

i n Electric Co, lead consumption 889 

Western Federation of Miners and Butte Mine Workers' 

Union 189 

And United Mine Workers of America "7fi 

Ditto Editorial 125 



982 

1009 
817 

933 
18 



Page. 

Western Federation of Miners at Butte 461 

Western Mining Co., Wolftone property. LeadvlUe Colo- 
rado 4» 

Western States Mining & Development Co. .r. \ . '. \ '. 230 

Western Union Mines Co., Republic. Washington 976 

Last Chance mine. Republic. Washington 702 

\\ estern Zinc Mining & Reducing Co 575 

Westinghouse Electric & Manufacturing Co., motors for 

driving Hardlnge mills 74^ 

New ventilating fan <r,- <~\ 

Strike IS 

Westwood Oil Co.. Utah 939 

Wewlssa mine, Colorado 822 931 

Whale oil . .• ,' 9 2t 

V> hat is the matter with prospecting?. . .Charles Moore. . . . 257 

Ditto Operator. . . . 107 

ton Mining Co.. Yukon gin 

Whim Well mine. Western Australia 697 

Whipple, James flay, death of . . . 859 

Whltcomb, George D., death of . ng 

White Caps mine, Manhattan. Nevada 3S5. 503, 982*. 1009 

Island sulphur deposit Editorial 903 

„ LMtto w, i). Hornaday 913 

^\ hite Pine Copper Co., Ontonagon, Michigan 192. 576 

Whiting hoist 003 

'Wlm's \\ ho in Mining* Editorial . '. . 981 

Wild West Mining Co.. Cherry Creek. Nevada 159 

Wierum, Howard F Experimental development of the 

Hall process 518 

Ditto Hall process. . . . 692 

\\ lid Horse mine. Cripple Creek, Colorado. .75. 231. 423, 575 983 
"Williams, Robert Progress and working costs, Tan- 
ganyika copper mines 487 

Wilson Consolidated Mining Co.. Utah e^O 

Wilson. President, letter at American Mining Congress... 906 

W Inch, new electric j;r, 

Winohell, A. N., correspondence course, microscopic studv 

of minerals and rocks Editorial...". 667 

Wind stresses 815 

Winona 232. 418, 503. 889 

Wire rope, locked coll 1001 

Rope, true diameter 815 

Wisconsin. Highland district ochre ['. 970 

Lead production by districts 306 

Platteville district, smithsonlte 692 

Platteville ore market 70, 305. 456. 616, 817, 970 

University of. microscopic study of minerals and rocks. 

correspondence course Editorial. .. . 667 

Zinc production by districts 70. 306 456. 616. 817 970 

Wisconsin Zinc Co., Wisconsin 817 

New plant 457 

Witwatersrand — See Rand. 

Wltwatersrand Deep, Rand, sand filling 804 

Wolfram, Argentina. Rosarlo district exports 648 

Queensland production :»i;i 

Slam production 75,3 

Wolframite, England and war 419 

Wolverine Copper Mining Co.. Kearsarge. Michigan 

122, 232. 266. 347. 420. 427. 458, 615, 658 978 

Company report 271 

Work for mining law revision Editorial .... 866 

Workmen's compensation George E. Bigelow. . . . 105 

Compensation again Editorial. . . . 587 

CompensRtlon, California, and Mine Owners' Casualty 

Indemnity Exchange Editorial. . .'. 1 

Compensation, California, insurance fund 157 

Compensation, California, insurance rates tumble 

_ Editorial 941 

Compensation Insurance in California Editorial.... 41 

Compensation merit rating Editorial. . . . 865 

Compensation v. accident prevention 

Fiank H. Trego 691 

Wrangell, Alaska, mining district E. E. Hurja 69 

Wyandot mine. Michigan 655 

Wyoming, copper production 117 

Gold production 117 

Petroleum production 36. 985 

Silver production 117 

LTnited States Geological Survey map 896 

Wind and Big Horn rivers placers 537 



Yankee Boy Mining Co., Idaho 30, 

Yankee Consolidated Mining Co., Eureka. Utah 117, 

Year. End of the Editorial.... 

Yellow Aster Mining & Milling Co.. California, battery 

stem guides ". 

Yellow Jacket Gold & Silver Mining Co., Nevada 

Yellow Jacket. Idaho, and Mandarin Mines Corporation.. 

Yellow Tiger Mining Co., Nevada 

Yeilowhead Pass Coal Co., Alberta, Canada 

Yosemite Dredging & Mining Co., California, jigs in gold 

dredging James W. Neill. . . . 

You Bet Mining Co.. California 

Young Men's Christian Association betterment work 

Yuanmi Gold Mines, Ltd.. Western Australia 

Company report 706. 

Contract work 

Costs 

Treatment of sulphide ore 

Yuba Consolidated Gold Fields. California 

Yuba No. 11 dredge, California, robbery 

Yuba No. 14 dredge 108, 

Yucca Mining Co., Arizona 

Yukon. Klondike gold production 

Kluane district 

Lode mining 

Territory mining 

Wheaton district 

White Horse 

Yukon Gold Co 45S. 

Chicago Bench suit 

Operations of Emil Edward Hurja. . . . 



350 
85S 
982 

584 

6 5 9 
772 
S23 
573 

839 
Hue 
714 
381 
1013 
697 
995 
995 

7 20 
898 

230 

534 

463 
61 1 
620 
27 
610 
612 

826 

422 

568 



Vol 1"'.' 



MINING PRESS 



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Calll 

Platter Ilia illati let, 

Editorial 

Editorial 

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Editorial. 
Kaneaa production 

C E Slebentl 
production 661 

Montana production ; ". " ,,: - 



. 



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Retorl imi Itlni 

Situation ■ i: Slebonl 

Smeltere, i. 

Smelting prnctli ...i.n. Weal K n 

1 1. 
Smelting, Progresa in ,.., Sdlto 

8mlthaonlte, Engllab and tmerl* 

Editorial 
Spelter, manufai 

. ■ ani 

Ion 

i 'n I ted SU Ion ..464, 1(1, 

Ditto Editorial 

Wales amelter plana Editorial, 

Wei concent ration recovei y . . , 

Wit ; i-i Ion by d 

Zinc Corporation, Ltd., Now s,.uiii Wall report 

J15. 






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CYANLDE PRACTICE 1910-13. By M. W. von Bernewitz $3.00 

CYANIDE PRACTICE IN MEXICO. By Ferdinand McCann $2.00 

DIAMOND FIELDS OF SOUTH AFRICA. By P. A. Wagner $8.00 

DREDGING FOR GOLD IN CALIFORNIA. By D 'Arcy Weatherbe $4.00 

FIRE ASSAY. By L. S. Austin $1.00 

GRAPHICAL SOLUTION OF FAULT PROBLEMS. By C. F. Tolman, Jr $1.00 

HINTS ON AMALGAMATION AND THE CARE OF GOLD MILLS. By W. J. Adams. . . . $2.00 
HINTS ON SURVEYING AND THE KEEPING OF MINE PLANS. By J. W. Teale .... $1.25 

HISTORICAL GEOLOGY OF CALIFORNIA. By William Forstner 50 cents 

JOURNEYS OF OBSERVATION. By T. A. Rickard $3.50; gilt, $5.00 

MINE BELL SIGNALS (California) . Printed on oilcloth 50 cents 

MINE SAMPLING AND VALUING. By C. S. Herzig $2.00 

MINING ENGINEERS' EXAMINATION AND REPORT BOOK. By Charles Janin $2.50 

MINING LAW FOR THE PROSPECTOR, MINER, AND ENGINEER. By H. W. MacFarren $2.00 

MINING LAW IN MEXICO. By Courtenay De Kalb 50 cents 

OIL PRODUCTION METHODS. By Paul M. Paine and B. K. Stroud $3.00 

OPERATION OF THE GOLDFIELD CONSOLIDATED MILL. By J. W. Hutchinson ... 50 cents 

PRACTICAL STAMP MILLING AND AMALGAMATION. By H. W. MacFarren $2.00 

PROSPECTING BLANKS. By Charles Janin $1.50 per set of three 

RECENT CYANIDE PRACTICE. By T. A. Rickard $2.00 

RUSSIAN MINING REGULATIONS. By J. Harper $2.00 

TESTING FOR METALLURGICAL PROCESSES. By James A. Barr $2.00 

THE METALLURGY OF THE COMMON METALS. By L. S. Austin $4.00 

THROUGH THE YUKON AND ALASKA. By T. A. Rickard $2.50 

TREATMENT OF CONCENTRATE AT THE GOLDFIELD CONSOLIDATED MILL. 

By J. W. Hutchinson 25 cents 

WEST AUSTRALIAN MINING PRACTICE. By E. Davenport Cleland $8.00 

In addition we carry the largest stock of technical books on the Pacific Coast. 

SEND FOR OUR COMPLETE CATALOGUE 

MINING PRESS, 420 market st., SAN FRANCISCO 




« I 






SAN FRANCISCO, JULY 4. I9I4 



■ 




MINING AND SCIENTIFIC PRESS 



July 4. i!H4 



JUST LOOK THROUGH OUR 
CATALOG FOR EVERY 

DESCRIPTION 

OF __ 




We have been selling supplies and machinery 
to the mining trade for over 50 years and our 
experience is worth money to you, to say nothing 
of the time we can save you by carrying the 
largest stock of 

Mechanical and Electrical 
Machinery and Supplies 

West of the Mississippi River. 

Our Electrical stock is complete with all up- 
to-date supplies as well as Motors, Generators, 
Switchboards, Etc. 

Write for information on any particular line 
you may be in need of. 



THE H ENDRI E & BOLTHOFF 

~~ MFG. & SUPPLY CO. ~ 

DENVER. — COLORADO. 



Jul\ I l'"l I 



\IINI\i. WD m II \ 1 II 1. 1'KI -s 



MOST RECENT DEISTER DEVELOPMENTS 

in Sand and Slime Tables 



It will interest YOU to learn 
details of Our Latest Success. 




We will be glad 
t<> furnish catalog 
and data. 

Also investigate ; 
our classifier. 4 




" 

Double Deek Btmpl< x Slime ritntor. 

AIhi Fonilhed in Single link Tyi 
Paten taL 



Manufactured and 
Sold Only by 



Debtor Machine I ompanj 'a 

-, Sand Concentrator. 
Also Furnished In Single Deck Type, 
Patented. 



DEISTER MACHINE COMPANY 

INC. JULY 1912 
Home Office : Shoaff Bldg., Fort Wayne, Ind. London Office : Salisbury House, London Wall, E. C. 



OUT OF SIGHT 



The drill which you want is the 
one which does your work with- 
out continual attention from the 
repair man. 

CLEVELAND 
DRILLS 

seldom see the light of day, once 
they go below. 




i 






s' 



Assurance of this may best be 
conveyed to you by practical trial. 
Any CLEVELAND drill will be 
shipped to you, subject to return, 
if unsatisfactory in any degree, 
without cost tOcyouf of any kind. 

In the facefof an cpportur,ity[to 
learn the truth the best judgment 
does net "stand pat" upona ques- 
tion of equipment. ; ■» t^u "^ 

We feel strcngly that yru and Catalog 
No. 8 can get tog ether to good purpose. 



THE CLEVELAND ROCK DRILL COMPANY 

6410 HAWTHORNE AVE., CLEVELAND, OHIO 



Mining and Scientific Press 



ESTABLISHED MAY 24. I860 



Vol. 109 



San Francisco, July 4, 1^14 



No. 1 



CONTROLLED BY T. A. RICHARD 

PI 9LISHBD WEEKLY BY THE DEWEY. PUBLISHING CO. 

AT 120 MARKET STREET, SAN FRANCISCO. 
Cable Address: Pertusola. Code: Bedford McNeill <- editions). 

BRANCH OFFICES: 
CHICAGO — 800 Fisher Bdg. Tel.: Harrison 1620. 
NEW YORK — 1808-10 Woolworth Bdg. Tel.: Barclay 6469. 
ON— The Mining Magazine, Salisbury House. E. C. 
Address: Ollgoclase. 

ANNUAL SUBSCRIPTION '; 

United States and Mexico *3 

Canada $1 

Other Countries In Postal Enlon 21 Shillings or J3 

iSTER BAIN Manager 

leco Postofnce as Second-Class Matter. 



A NNO UN CEMENT 

For more than ball ;i century the Mining and Scientific 
Press has been the exponent of the best in the technology of 
mining and metallurgy, first on the Pacific Coast, then In 
Western North Americas, and finally around the world. Its 
purpose has always been In print an independent technical 
journal, and in I he Press organization the Editor has always 
bi i captain of the ship. With expansion it became necessary 
to organize i,y departments, and in recent years the Editor 
has assumed less responsibility for the conduct of the business 
itself. Willi the retirement of Mr. I.. A. Greene, who has 
served as Business Manager since 1909, to enter business for 
himself, 'be Editor has resumed direct responsibility for the 
whole enterprise. He will hereafter be Editor and Manager 
and will have full charge from front to back cover. This is 
in accord with the traditions of the Press. We believe that 
the fundamental purpose of a technical journal is to furnish 
accurate and timely technical information; that the Editor 
and I lie readers are the first requisites to a successful publica- 
tion. If the editorial staff be capable and energetic and if the 
be sympathetic and loyal, a journal will succeed. The 
excellent results achieved by the Press show this theory to he 
sound. Personality counts in journalism today as much as it 
ever did. If we have no more Horace Greeleys, we do have 
Horace Lorimers. Personality merely manifests itself in a 
new way. All editor can no longer content himself with 
writing pertinent paragraphs or luminous leaders. He must 
n eye to the whole paper and must accept responsibility 
ing in it. Readers of technical journals, at least. 
look to the advertising as well as editorial pages for accurate 
information. A journal is judged as a whole, and clean ad- 
vertising pages are recognized to be as important as inde- 
pendent editorials. Fortunately, technical journalism learned 
this lesson long ago. The new element in journalism is the 
idea of service as distinct from news. Publishing a technical 
journal, and making it the best in its field, as surely calls for 
knowledge of that field as does the editing. A man 
may be an excellent 'employing printer.' he may even print 
aper in one field and, yet achieve but mediocrity 
lie attempts to enter another. Publishing is more than 
covering paper with ink; it is the conduct of an organization 
Ives service to readers and advertisers, and real service 
.er be based upon special knowledge. 



TABLE OF CONTENTS 

EDITORIAL 

Notes 1 

Refinancing Natomas 2 

Sold Exports 4 

ARTICLES 

Mil bods ot Testing ft v. eb Gravels. By W. j. Radford. . . 5 

In this Mr. Radford attempts to answer tie- question 
i if what degree of accuracy are gravel tests'?" He 
details the methods of making pan tests, of taking 
samples, of sinking test pits, and of drilling by 
and machine: giving detailed statements of rej 
based upon tests made In both North and South 
America. 

Mining Revival in the Ketchikan Distbict, Alaska. 

By E. E. Hurja 10 

Ketchikan is the southernmost nf the big Ahiska min- 
ing districts. It Is an area of contact nietamorphlc 
deposits that has long been in minds of mining men. 
but which big capital has been slow to enter. The 
Granby company has bought the Mamie group to help 
feed Its Anyox furnaces, and the Alaska Gastlneau 
managers, encouraged by their success at Juneau, are 
sampling the Julia and Humboldt groups. This careful 
review of actual present conditions throughout the dis- 
trict Is written by Mr. Hur.ia. who Is revisiting Alaska 
this season as special correspondent for the Press. 

Irs: Chambers at the Ashio Smelter, Japan 13 

First-hand data, with drawings, of a dust chamber In- 
volving Important Improvements, as It Is now being con- 
structed hy the ingenious engineers at Japan's greatest 
copper mine. 

ELIMINATING THE MOSQUITO 14 

Practical advice based upon the experience of the Ten- 
nessee Coal. Iron & Railroad Company. 

Aistrai.ian Jam and the Malay Tin Inotjstby 15 

How the need for tin In the canneries led to develop- 
ment of a large and profitable mining Industry. A field 
American dredge men would do well t" study. 
MINI KG i x the Argentine 17 

IMUAX CoAI. OlTPUT 17 

A Mil B3GAN STOI'ING METIIOn 18 

COAI Proiii TTiox of West VIRGINIA 18 

DEPARTMENTS 
I ii-i iTSBION : 

Simplification of Gold Ore Treatment. Bu tloel Cun- 

ningham 19 

Platinum Assay. By Frederic P. Dewey 20 

Diffusion of Ore Deposits. By A. C. Lawson 21 

Revision of the Mining Law. By C. J. Fry 21 

Oi\l IXTI'.ATES 22 

Review of Mining: special correspondence from Nova Sco- 
tia. Leadville, Yukon. Rhodesia. Philippines. Salt Lake 

City. Kalgoorlic New York .■ 23 

The Miking Summary 28 

Person \l 32 

Schools and Societies 32 

Society Meetings 32 

The Market Pl.w e: 

Stocks and Bonds 33 

Metal Prices 33 

New York Metal Review :J4 

Current Prices for Ores and Minerals, Chemicals, Oils. 

and Candles 36 

Company Reports: Colombian M. & E. Co.: Robinson Gold: 

Broken Hill Prop. Block 10; St. John del Rey .17 

Mineral Statistics 38 

Book Reviews 39 

Mining Decisions 39 

New Machines ami Devices: The I'se of Link-Belts; New 

Deister Products; Commercial Paragraphs 40 

.4h index to Volume t08 Ikis been prepared and will be sent 
mi request. 



. 1-»U 



MIMV. \\1> m II \l II I. I'KI SS 




-THK BCTTK MINTR- 



-11AY 10. 1 




Water Liner Machines Now 
in Use in Butte's Mines 
Solve the Dust Problem 



Within lb* last eight or ten month* 
mott of the largo mining companies 
operating to Bulla have installed "po- 
stal machine* that do away with the 
dust from drilling, which has been on* 
of the chief. If oot the priclpal causa 
Of miner*' coniumpllon, according to 
Stat* Mining Inapoctor William H. 
Oram. Ha predicts there will be more 
activity id mining in Montana this sea- 
■ on that ever before, ear* the Helena 
Record. 

Until the Installation of water liner 
machine! In the last few months, all 
hole* were bored dry. and the fine 
powdery dust filled th* workings and 
wu inhaled by the miners. Now 40 
Or 60 water liner machine, are In use 
and with them -the holes are drilled 
wet and th*re !■ no dust engendered. 
Bo successful have tbs -machines been. 
and soch a great Improvement In 
working; conditions has followed their 
Introduction that In a very little while 
practically ***ry mine In Butte will 
be «o equipped. Mr. Orem believes. 

"I was down In Arizona several 
months ago Inspecting the mines there 
with particular reference to safety ap- 
pliances. While I obtained many valu- 
able Ideas, the general standard of 
eafetv there Is no higher than here 
In Montana, and I am convinced that 
Montana standards will compare most 
favorably with those to be found any- 
where In, the mining world. Jn Ari- 
zona last year 13.500 men were em- 
ployed and M 'men were killed: in 
Montana IS. 500 men were employed 
and 50 were killed. 

none fa Yortoal. 
"Butte Is normal and Is employing. 
It usual quota of men, but with the 
Increased attention being jgWen to zinc 
there\ I believe many more men will 
be permanently -employed wlth'n the. 
next two years. It Is asserted, and j 
lher<> is no reason for doubling l tie. 
statement, that within two yeocj 
Butte's output .of 2lnc will be as great j 
as Its outpuf of copper Ther* -are.' 
Iars;e deposits pf sine now uncorked 
thai soon win be adding* to the camp'? 
wealth. The Butle-Superlor has a'»lnc 



mill In successful operation, and the 
Clark plant will start operations In 
about a month. 

'The Helena district gives promises 
•f being one of tha liveliest [In the 
state this year outside of |Butte. 
Radersburg. I am Informed. ■ never 
looked batter. In the lowest 1*9*1* of 
tha Keating there are s+x or t seven 
fait of ore. Other districts [where, 
t*ere wl'» -i' "mere activity than has 
bewn manifested for a number of years 
are In Deer Lodge. Powell and Granite 
counties. In the Little Rockies of 
Blaine county. In Llbby, and around 
Saltese In Missoula county, and In tbe 
southern part of the slate In Beaver- 
head county." 





Send for Bulletin 4020 

INGERSOLL-RAND COMPANY 



* 



NEW YORK 



Offices the World Over 



LONDON 




MINING AND SCIENTIFIC PRESS 



•Tulv 4. I'M 4 



The Wedge Mechanical Furnace 



PATENTED 




A Few Large Furnaces 



Are more economical to install and to operate than many small furnaces. It will pay you to install Wedge 
Mechanical Roasters for large capacities. They are built to last. 

Write us stating analysis of ore, concentrates, mixture or material you desire to roast, characteristics and 
physical condition of same, number of tons to be treated per twenty-four hours, and results desired in the calcine. 

WEDGE MECHANICAL FURNACE COMPANY 

115 Chestnut Street, Philadelphia 



July 4 I'M 

/ 



\II\IV. WD S< II Mil H I'KI -- 



Service for Engineers 



i before the How-sheet la settled, or 
tlif si/r of the units determined, the 
engineer has need "f data that AJlis- 
Chalmera ia ready to furnish him. 

Our large engineering organiza- 
tion lias records accumulated 
from years of experience with 
all phases of those industries for 
which we manufacture. 

Difficulties, tests of materials ami mach- 
inery, careful analysis, erection troubles, 
failures, good judgment, and success 
make up that experience. 

Allis-Chalmers is a clearing- 
house of experience for the 
benefit of you engineers. Make 
it easier for the operator for 
whom you plan by securing this 
service. 




Allis-Chalmers Manufacturing Co. 



Mining Machinery Department 



District Offices 

in the 

Principal Cities 

c< the 

United States 



In Canada refer to 

Canadian Allis-Chalmers Company, Ltd., 

Toronto 



Milwaukee, Wisconsin 

Fnreijrn Offices 
and Representatives 

in the important 

Mining Centeis ot the 

World 



j 




Motor Drives 



simplify mill construction and allow greater flexi- 
bility in the arrangement of equipment. 

With proper grouping and proper 
selection of motors, power costs are 
reduced. 

Allis-Chalmers induction motors are well adapted 
to group drives, and are particularly responsive to 
severe service demands. 

Our types "ANY" and "ANZ" are 
suggested for reducing starting loads 
— they cut down "maximum demand" 
and so lower the cost of power. 

In the interest of simplicity, flexibility, reliability 
and economy, provide Allis-Chalmers motors. 



MINING AND SCIENTIFIC PRESS 



July 4. 1914- 



The Gujrantr c 
of Excellence 




100 B P or Driven Shaft Hoist atGr lensburg Coal Co.. i Jreeasbuxu, Pa., no ifuJ operation. 

The Electric Mine Hoist 

Most Economical Obtainable 

Some of the advantages of electric hoists over steam or air are : 

Greater Safety 

Greater Reliability 

Longer Life of Ropes and Brakes 

More Sensitive Control 

Lower Operating Cost. 

The latter advantage is realized practically always and a saving of one-half the powencost 
of steam hoisting is often obtainable when power is purchased from a central power station. 

No power bill comes in for the many idle moments when the hoist is not operating. No fire- 
men and ash handlers need be kept on duty all night. 

Our electric hoisting experts have designed many of the large as well as the small electric hoist- 
ing equipments in use. Their experience is placed at your disposal without implied obligation. 

Bulletin Xo. 4922-A, "Electricity in Metal Mines," and Bulletin No. 4886-A, "Electricity in Coal Mines," 
or Bulletin No. 4939, "Electric Hoists," will be sent on request. 

General Electric Company 



Atlanta. G&. 
Baltimore, Md. 
Birmingham, Ala. 
Boise. Idaho 
Boston, Ham 

Buffalo. N. Y. 
Butt.-, Mont. 
Charleston, W. Va. 
Charlotte, N. C. 

Chattanootm. Term 
Chicago. 111. 
Cincinnati, Ohio 



Cleveland, Ohio 
Columbus. Ohio 

I, Ohio 
Denver, Colo. 
Dee Moines, Iowa 
Detroit, Mich., 

tOfficeof Ag.nti 
Elmira. N. V. 
Erie, Pa. 

Fort Wayne. Ind. 
Hartford. ConrT 



Largest Electrical Manufacturer in the World. 

General Office : Schenectady, N. Y. 
ADDRESS NEAREST OFFICE 



Indianapolis. Ind. 
ille. Fla. 
Joplin, Mo. 
Kansas city. Mo. 
Knoxville, Tenn. 




Los Angel s. Cal, 
Louisville. Ky. 
Memphis, Tenn. 

Milwaukee, Wis, 

Minneapolis, Minn. 



Nashville. Tenn. 
New Haven. Conn. 
New Orleans. La. 
New York. N. Y. 
Niagara Falls, N. ^ 
Omaha. Neb: 
Philadelphia, Fa. 
Pittsburgh. Pa. 
Portland, Ore. 
Providence. K. I. 
Richmond. Va, 



Rochester. N. Y. 
wait Lake City, Utah 
San Francisco, Cal. 
St. Louis. Mo. 
Schenectady, N. Y. 
Seattle, Wash. 

Spokane. Wash. 
Springfield. Mas9. 
Syracuse. N. If, 
Toledo. Ohio 
w ii-liington, D. C. 
Youngstown. Ohio 



For Texas. Oklahoma and Arizona business refer bo -..mini est General Electric Co., ' formerly Hobson Electric Co.) — Dallas, El Paso, Houston 

and Oklahoma City. For Canadian business refer to Canadian General Electric Company, Ltd., Toronto. Out l ffl 



Jul\ 4, l!H4 



MINING AND sell Mil I. PR| » 



Dodge Dependable Gearing for 
Mines and Mills 




FOR twenty-five years or more, gearing has 
been a part of the Dodge line, and in its 
manufacture the same high-class methods so 
result productive iii inir iron center wood rim 
pulleys, self-oiling bearings, pillow blocks, 
clutches, conveying and elevating equipment, 
etc., have been used. 

Our facilities for gear design and construc- 
tion represent experiences which have brought 
together the highest type of equipment, engi- 
neers and tradesmen. The Dodge list of gears 
— spur, bevel, miter and mortise — including 
those bored and key-seated, or set-screwed, has 
been made as comprehensive as possible. 

Our mortise gears are filled with thoroughly 
seasoned, hard maple cogs, securely dressed 
so as to assure uniformity and correct pitch' 
of teeth. They are durable and smooth run- 
ning, and owing to their construction the teeth 



Dodge 

Spur 

Gear 



eau be renewed at any time, and at .small 
e pense. 

Complete information, with prices, may be 
obtained by writing the factory or our selling 
representatives mentioned below. If at any 
time you are in need of gearing, by giving us 
the following information we can take care 
of you without delay: 

The speeds of the two shafts, power to be 
transmitted, the maximum and minimum diam- 
eter, if .spin- gears, the distance between shaft 
centers: the pattern number (if Dodge) ; pitch 
diameter, number of teeth, pitch and face: 
the exact size of bore in inches, keys or set- 
screws or both if desired. 

If you do not happen to have our catalog 
handy by all means send for it. There are 
many pages devoted to gearing — the depend- 
able kind. 



Dodge Manufacturing Company 

Power Transmission Machinery for Mines and Mills 



Mishawaka, Ind. 



Dodge Manufacturing Co., 14th and Lovejoy Sts., Port- 
land, Ore. 

Harron, Rickard & McCone, San Francisco and Los 
Angeles. 

Hendrie & Bolthoff Mfg. & Supply Co., Denver. 

Mine & Smelter Supply Co., Salt Lake City and Denver. 

Atlanta, 28 South Forsyth Street. 

New York, 21 Murray Street. 

Boston, 137 Purchase Street. 



Philadelphia, S15 Arch Street 
Chicago, 208 South Clinton Street. 
Cincinnati, 12S West Third Street. 
St. Louis, 408 North Fourth Street. 
Minneapolis, 100 North Third Street. 
Indianapolis. 1512 Merchants Bank Building. 
Grand Rapids, Mich.. 321 Bond Avenue. 
Dallas, Texas. 1105 Busch Building. 
Pittshurgh, 337 Second Avenue. 



10 



MINING AND SCIENTIFIC PRESS 



July 4. 1!H4 



NATIONAL 



Facts About "NATIONAL" Pipe That 



No. 1 




A Short History of Pipe and Early Methods of Manufacturing 



r^ 






IN the early history ol man's endeavor to solve the 
difficulties of mere existence, some sort ol 
for the conveyance of fluids must have been em- 
ployed. 

Probably the "bamboo," which in tropical countries 

grows to five or six Inches in diameter at the lias.-. 
was used. It is today frequently used by "coolie" 
gardeners for conveying water along the surface of 
the ground for short distances. 

EARLY ADVANCEMENT. 

The next step was a "pottery" tube, and these are 
found in Egyptian, Aztec and other prehistoric re- 
mains, which are brought to light by the excavations 
of archaeologists. 

There is ample evidence that lead tubes were 
lamely used in Grecian and Roman civilization. In 
many museums lead pipe and bronze water faucets 
(closely resembling the modern faucet) are shown 
which were recovered from the ruins of Pompeii. 
Herculaneum. and other buried cities. 

Pliny, whose writings cover the last three-quarters 
of the first century A. D.. states that "in order to 
raise water up to an eminence lead pipes must be 
employed." 

FIRST IRON TUBES. 

Probably the first imperative need for iron tubes 
was for the manufacture of gun barrels. 

After the invention of gun powder, the first can- 
nons were made of bronze, and early Spanish can- 
nons are wonderful examples of metal-working skill 
in ornamentation. 



But this was too expensive a material for gun bar- 
rels, and the need for cheaper material brought out 
the earliest application of wrought iron for tubes. 

FIRST METHODS OF WELDING. 




Fif.l 

In the early history of wrought iron tubes, the only 
known method consisted in bending an iron plate or 
Btrip to form a "skelp," and the edges were welded 
meal by a smith hammering the red 
hot metal over a rod or mandrel. A rather expensive 
and tediovis process. 




Fig. 2 



NATIONAL TUBE COMPANY 



Atlanta 
Boston 



Chicago 
Denver 



Kansas City 



DISTRICT SALES OFFICES: 

New Orleans New York Philadelphia 



Pittsburgh 
Salt Lake City 



St. Louis 
St. Paul 



NATIONAL 



Jul\ I 1 •» 1 * 



MINING \\l) x II Mil It I'M SS 



II 



ATIONAL 



Every Mining Engineer Should Know 




In l^'i.' an Englishman named Osborn patented ma- 
ehlneo tor "welding and making barrels of Breams 
and other cylindrical articles." 

EARLY PROCESSES EXPLAINED. 

Figure l The Bkelp IB raised to a welding heal In 
an open or close fire and, after the mandrel has been 
Inserted is then placed in the swage or anvil A. and 
welded by the action of the tilt hammer. 

In figure 2 the inventor states: "I take a skelp ami 
place it In either of the beds, 1. 2, 3. according to the 
part required to be welded, and which welding is 
effected by the swage segments A performing half a 
revolution, the manner of which Is explained by the 
profile B." 

This is believed to have been the earliest form of 
machinery for welding iron tubes. But as may 
readily be seen the process was not very rapid, and 
in the next two or three years a new necessity arose 
for Iron tubes in quantities. 

About the time of Osborn's invention for tube-weld- 
ing machinery, another Englishman was perfecting 
his process of making coal gas for lighting purposes. 



GAS TUBES. 

Iron tubes (gas tight) for this purpose were essen- 
tial, ami the Inventor of gas lighting (Murdock) first 
collected and used old gun barrels (of which there 
was an abundant supply at the close ol the various 
European wars), screwing the barrels together Into 
a continuous tube to convey the gas. 

(Parenthetically, it may be said, some pessimists 
have staled that modern economists have reversed 
Murdock'a methods, and made gun barrels for remote 
markets from gas pipe!) 

The extension of gas lighting was very rapid, and 
the necessity for production of iron tubes with greater 
facility and less cost became apparent. 

FIRST BUTT-WELDING. 

The inventors were equal to the occasion, as they 
generally seem to be. In 1S24 James Russell filed a 
specification for "an improvement in the manufacture 
of tubes for gas anu other purposes." This apparatus 
will be shown in the next announcement, which will 
be published in the August 1st issue of Mining and 
Scientific Press. 



<]Toreadilv identifv" NATIONAL" 
material and as protection to 
manufacturer and consumer alike, 
the practice of National Tube 
Company is to roll in raised letters 
of good size on each few feet of 
every length of welded pipe the 
name "NATIONAL" (except on 
the smaller butt-weld sizes, on 
which this is not mechanically 
feasible; on these smaller butt-weld 
sizes the name" NATIONAL "ap- 
pears on the metal tap attached to 
each bundle of pipe). 




ame Rolled in 
Raised Letters on 
National Tube 
Company Pipe 



<j When writing specifications or 
ordering tubular goods, always 
specify "NATIONAL pipe, and 
identify as indicated. 
<J In addition, all sizes oi 
"NATIONAL welded pipe below 
four or five inches are subjected to 
a roll-knobbling process known as 
Spellerizing to lessen the tendency 
to corrosion, especially in the form 
of pitting. This Spellerizing pro- 
cess is peculiar to "NATIONAL" 
pipe, to which process National 
Tube Company has exclusive 
rights. 



(met building) PITTSBURGH, PA, 

PACIFIC COAST REPRESENTATIVES:— U. S. Steel Products Co., San Francisco, Los Angeles, Portland, Seattle. 
EXPORT REPRESENTATIVES:— U. S. Steel Products Co., New York City. 



!^ 



NATIONAL 



12 




MINING AND SCIENTIFIC PRESS July 4. 1914 










MR. 


DREDGE OPERATOR: | 









DoYour Specifications 
For Screen Plates Stipulate? 




High Carbon Steel Plates, Uniform Tapered Perforations 

Thick Plate, three-quarters or more 
No burrs top or bottom Small Holes — Any Diameter 

Our screen plates are drilled and counter-sunk on special automatic machines which 
enables us to turn out screens of the highest order and at a very satisfactory price. 



UNION IRON WORKS CO 

SAN FRANCISCO, CALIFORNIA 



CITY OFFICE: 311 CALIFORNIA STREET 



July 4. IVl I 



MININC WD n II Mil h TKI SS 



I : 



ANOTHER STEP FORWARD 

ANNOUNCEMENT 



We desire to announce that we have secured the 
exclusive manufacturing and selling rights for the 
United States and Mexico of the new and improved 




NISSEN STAMP 



(Patented) 



which has so satisfactorily demonstrated its superiority 
over every kind of gravity stamp in South Africa. 

CHALMERS & WILLIAMS 

CHICAGO HEIGHTS, ILL. 



14 



MINING AND SCIENTIFIC PRESS 



Julv 4. 1!H4 



THE SUN NEVER SETS ON 
HARDINGE MILLS 




AN ASIATIC LINK IN THE CHAIN AROUND THE WORLD 

IT IS DIFFICULT ENOUGH TO OBTAIN AN INTERNATIONAL REPUTATION, BUT 

TO MAINTAIN SUCH A REPUTATION IS POSSIBLE ONLY OF PRODUCTS OF 

UNQUESTIONED WORTH. 

THE FACT THAT THE HARDINGE MILL GAVE BETTER RESULTS IS THE REASON 

WHY A REPEAT ORDER WAS RECEIVED THE OTHER DAY FROM THE ASIATIC 

CONCERN IN QUESTION. 

IS NOT THE EXPERIENCE OF OTHERS A SAFE GUIDE? 

AT LEAST WORTH LOOKING INTO? 

LET US CONSULT WITH YOU IN THE SOLUTION OF YOUR GRINDING PROBLEM. 

HARDINGE CONICAL MILL CO. 



London Office: 
Salisbury House 



50 CHURCH ST., 
NEW YORK 



Cable Address: 
Halharding, New York 



Loral Sales Agents- f Mine & Smel,er Supply Co., Salt Lake City, Utah, 
i-ocai oaies «gems. ( Hendrie & Bolthoff Mfg. &. Supply Co, Denver, C 



Colo. 



July I. l-iu 



MIM\.. WD » II Mil It I'M SS 




BDITORI 

- 

M \\ .... BBRN'BVt ITS I 

Till i.M i- T RE mi N< « N ..i k ■ 

ftICK v i: i • London - ■ lal I 

KOW \i:i> u m.k , ondrnt 



1/ ru\ i i:im 



• 



Bdlloi 



\ w 

Mill 



III 

■ \\ Purlni 

. in ii. 



T> EADERS will tinil the table of contents formerly on 
■*■*- this page, upon the second white page in the p 
The !!•■« arrangement will allow more space both for the 
table itself and for editorial matter. 

ffcECISION of the rail of the Kennedy Extension 
■'-' Mining Company againsl the Argonaut Mining 
Company has been rendered and is favorable to the 
Argonaut The points at issue were brieflj discussed 
in nil!- issue of January 17. and a full summary of this 
ini| t.i. it case will follow. 

pENERAL FELIPE ANGELES 1 Lie. Luis 

^-^ Cabrera are prominent among those named al the 

Niagara Palls confere as possible successors of 

Hnerta. As both are Constitutionalists, it is hardly 
likelj that Huerta will accepl them and iis Carranza 
baa ambitions of becoming president, neither can count 
upon his support. 



/"CALIFORNIA mine operators will welcome the an- 
^- 4 nonnceraenl that the Mine Owners Casualty ln- 
demnity Exchange has been organized in order to re- 
duce the cost '>(' workmen's compensation insurance 
through cooperation of the mine operators. This is a 
matter in which we take much interest and that we 
propose to discuss fully next week. In the meantime 
inquirers can get full information at the offices of the 
new company in the First National Bank building, San 
Francisco. 

ALASKANS were especially interested in the de- 
-'*- cision of the case of Likaits v. Johnson construing 
the Alaska placer act and reported in our issue of June 
6. The ease arose over use of a power of attorney to 
locale placer ground. Another case was that of Suther- 
land v. Purdy, reported in May. Briefly, the new law 
requires that power of attorney, to be effective in placer 
location, runs! be recorded within the judicial district 
in which it is used and limits its use to two locations in 
any one month. In the one ease the recording was not 
done until after the location was made, though before 
the second locator filed on the claim, a fact perhaps not 
made sufficiently clear in our abstract. The court held 
that the order of the acts was immaterial in view of the 
good faith shown and the climatic and geographical con- 
ditions faced, fn the second case the record was im- 



properly made but has held to be good i tin 

The judge held that, having in t iew the actual conditions 

in the field, when a locator deposits his doCU nts in 

the proper recording Office and pays the r 'In 

later receiving the documents hack bearing the endorse- 
ment of record. In- is not liable for any errors or neglect 

Of the recorder. These iliv sensihle I illsi less 1 1 ke ile- 

cisions in line with the general rule that the mining law 
is to be interpreted in accordance with the 

as they arc rather than as they might be. 



'TMIK NATOMAS tiaseo points again to the moral we 

-*■ have often preached: namely, the sound ecOl UC? 

basis of the W( rk of independent engineers. The men of 

the regular staff of the Natoraas are highly qualified, but 

human nature is not to be denied, ami as vendors we all 
see most keenly the strong points of what we have In sell. 

We have previously referred to mistakes made by the 

consulting engineer who in this ease acted for the Lon- 
don bondholders, lie has replied in the Press and also 
in a special report to the stockholders by urging that he 
merely accepted figures given him by the men on tin- 
ground. The very fact that his having done so has in- 
volved him in the necessity of making elaborate explana- 
tions and excuses, is the best of arguments against an 
engineer in any such situation accepting critical data at 
second hand. 



pREATION of a petroleum division in the I'. S. Bu- 
^* reau of Mines and appointment of Mr. \V. A. Wil- 
liams to be its chief, is in some ways the most important 
move made by the United States government in its re- 
lation to petroleum production in many months. The 
new division is to have charge of all technologic work 
connected with oil on the public and Indian lands. As 
owner of large areas in the midst of productive fields, 
and of even larger tracts of potential oil laud, the Gov- 
ernment has a direct interest in securing the most 
economical development and the maximum yield. Waste 
of gas and flooding of oil sands is as serious when On 
public as on private land. In Oklahoma, too. the Secre- 
tary of Interior, as guardian for the Indians, has heavy 
responsibilities in connection with actual production of 
gas and oil, and if oil is to be produced from public 
lands by lease or otherwise for the navy, to say nothing 
of proposals that the Government should build pipe- 
lines, there is every reason why the Department should 



MINING AND SCIENTIFIC PRESS 



July 4. 1914 



have mi its stall' men who really know the oil business, 
ileum producers have complained, qoI without justi- 
fication, thai in the past, goven ml action baa been too 

often uninformed, or based upon half knowledge. Mr. 
Williams is ;i thoroughly competent oil man, a graduate 
of Stanford University and experienced through service 
with tin- Associate and General Petroleum companies. 
as the confidence of California operators and may 
pected i" "in thai of Eastern petroleum producers 
a* they come to know bira. It is understood that $60,000 
is available for beginning his work and an amendment 
to the sundry civil Mil has been introduced increasing 
this mm to $200,000. 



REFINANCING NATOMAS 



Plans for relieving Natomas Consolidated of Califor- 
nia from financial difficulties have been worked out in 
I. on, ion and weir announced in San Francisco, June 

I s . fn the interest of the new plan, an appeal is 

being made to bondholders by a committee consisting 
of .Messrs. Frank B. Anderson, Herbert Fleishacker. 
Percy 'I'. Morgan, George B. Webber, and Curtis II. 
Lindley; certainly a list of weighty names. Among 

liios. active in formulating the plan in London were 

Mr. Herbert C. Hoover and others of equal standing. 
Nonetheless opposition has appeared, being voiced by 
McCutcben, Olney, and Willard, and a formidable re- 
volt on the part of bondholders is not improbable. "When 
a company having a liberal number of conflicting secur- 
ities gets into financial difficulties, it is hardly to be 
expected that any plan for reorganization will he ac- 
cepted without protest. The very condition that makes 
niization necessary, implying as it does some fail- 
ure or miscarriage of plans, requires that there shall 
be some sacrifice in order to offset it. With security- 
holders having unequal interests, it is natural that 
each should try to save for himself what he can, and 

equally inevitable that the other parties in interest, if 

informed and vigilant, should protest. There is alum. 

dant room for difference of opinion, and it is possible 

uss these differences, we hope, without imputing 

re than the normal desire to save what 

he may for himself. 
It is proposed to organize a new company and to 

000,000 in live-year notes: $16,500,000 in 20- 
year. 6 per cent, first mortgage bonds, using .+4.000.000 
of these to secure the five-year notes; +7.250.000 in non- 
eiimulative stock: and +9.250.000 in common stock. The 
right is reserved to pay the first five years interest on 
the bonds in bonds of the same series, and +2.500.000 
of the issue is held for that purpose. A new English 
company capitalized at £600.000 is to be formed to 
hold the common slock. The securities are to he dis- 
tributed as follows: The Natomas Syndicate will buy 
the $3,000,000 issue of notes for .+2.700.000. and the 
■Hi stock. Each holder of + 10011 of the first mort- 
gage hoods of the present Natomas company will re- 
ceive +fi00 in the new bonds and $400 in preferred stock. 



Each holder of +lllllll of second mortgage bonds will 
receive $500 in preferred stock and £5 in the stock 
of tic English company. Each holder of $100 of stoek 

in Natomas Consolidated will receive £1 in stock of 
the English company. The floating debt creditors will 
surrender their securities and take 90-day notes or the 
new five-year notes at 90 cents. Since the floating debt 
amounts to $1£88,000 and the debt to the Natomas 
Syndicate is $1,213,000, it is evident that hut little 

additional cash will become available under this arrange- 
ment. The plan proposed is peculiar in that floating 
debt creditors and holders of junior securities, in return 
lor the advancement of a relatively small amount of 
additional capital, arc to be given preference over first- 
mortgage bond holders. The latter are asked to con- 
sent to receive further bonds in lieu of interest for 
1 he next five years. This payment of interest on bonds 
by issuing more bonds is strongly reminiscent of the 
nursery rhyme: 

Big bugs have little bugs to bite 'em: 

Little bugs have littler buss. 
And so on ad infinitum. 

If, indeed, a plan has been found by which interest 
On debts can be met by merely creating more debts, a 
delightful field for financing is opened. Seriously, how- 
ever, this hut postpones the day of reckoning and adds 
to the interest charge. In the meanwhile, the handling 
of the property will be in the control of those who 
have a minor interest, and in five years the best part 
of the most nearly liquid asset, the gold reserves, will 
be gone. Whether the market for land will have im- 
proved enough to offset this is a question. 

The serious matter, the one of general interest, is 
the light regard paid to the first mortgage bonds. Na- 
tomas bonds have been endorsed as suitable for in- 
vestment of trust funds by bankers standing high in 
the business world. Now they are swept aside to give 
piled-up security tO those who advance money on sh'ort- 
linie notes. Incidentally, it develops that by reason of 
the issue of reclamation bonds, the first mortgage bonds 
arc in fact now junior securities. No wonder that it 
was found difficult to make this clear to British bond- 
holders. It is far from lucid to many nearer Hie home 
of the Company. 

The men and the banks that advanced money this 
spring to save Natomas from a receivership have a 
strong claim for preference in the reorganization. By 
certain of the directors at least, personal securities were 
advanced to save the Company credit. No adjustment 
can be satisfactory that does not take into account such 
claims. But the bondholders also have equities, and 
back of that is the public interest. There can be no 
question but that public confidence in Western securities 
will lie seriously injured if Natomas bonds are set aside 
in this fashion. A bond should stand for something. 
If as a matter of fact it has come to represent nothing 
definite, it will be hard hereafter to sell bonds, as it 
is now hard to sell stocks, and industry will suffer. 

It is difficult to determine the real present value of 



.lutv 4, I'M* 



\1I\1V. \M) x II M II |. I'KI SS 



HI UT1 

entei pi \m In pari >' is founded "ii gold 

i 11 ImikI r me How- 

king in a i nol the land di 

Id thai ii ilaimed by drainage and irri 

ingeniooi than that 
■ gold dredging land, valued 1 1 

i.l estimated by the Com- 

i net, forma the 

profitable Industry which, with Bnbordinate 

rushed rook and subsidiary enter- 

i been paying interest on bonda iaroed to oh 

Fundi tor reclaiming valley landi Immediately 

north of Sacramento, In the end it haa I n planned 

tliiit the reclaimed lands should be sold a) such prices 
(ford .1 profit on the whole enterprise, 
The plan has many excellent features Oold-dredging 
is a profitable but short-lived enterprise, A gold dredg 
hi'.: field may be quickly equipped and brought into 
production, and, while the dredging ground lusts thfl 
income "ill l„- sufficient i" carry a large bond issue, 

such ns is necessary to flnai a reclamation project 

through the long lean years while the bind is being 
brought under cultivation and sold. It haa the inherent 
difficulty that it combines two dissimilar enterprises, 
both of which an speculative. A speculative enterprise, 

wore si ss. requires special knowledge and 

cli se attention, ami it is a rare thing tor a manager, 
or even a group of managers, to handle dissimilar busi- 
• equally well. As noted by Tin Mining Maga- 
Mure is even ;i movement now toward having 
boards of consulting engineers instead of one tor emu 
panies engaged exclusively in mining sad closely re- 
lated industries, and it is a well known fact that min- 
ing companies only in the rarest instances make money 
from such agricultural lands as they chance to own. 
On the other hand, farmers as mine managers have 
hi me a byword. To combine gold-dredging and farm- 
ing is simply t,i invite disaster. 

And disaster came. We have repeatedly directed at- 
tention to the fact that estimates made by the Natomaa 
gement and the Company's consulting engineer 
proved sadly out. The gold-dredging ground 
owned by the Company has long been known to be valu- 
able, bul much of it is cemented and hard to dig. Build- 
ing a dredge to handle it necessarily involved an ex- 
perimental element. It is true, probably, thai the final 

OUtC ■ is even yet not wholly certain, since the 

dredges, large and strong as they are, are subjected to 
unusually heavy strains, and it is too soon to say what 
their life will be and what is a proper amortization 
clianre. They are magnificent dredges and are pcrforni- 
II. but operating eosts for short periods are often 
deceptive. Delay in equipping the ground with a full 
fleet is the obvious cause of the disaster that lias over- 
taken the Company; the gold has come from the ground 
too slowly and in too small amounts, while all the time 
interest charges were mounting and engineering expenses 
in connection with the land reclamation were to be 



'• building the dredg 
hie? although the /naiu lues have not been changed 
Iher with n wont unusual sequence of fin 
and lible Tor the delaj The 

fad t anticipated, tl 

idg nt of i) mcerned and ■ 

bondholdora to question everything, This attitude is 
reinforced by auoh drcumatancea as that Mr V. .1 de 
Sabla, in speaking before the bond and stock holders in 

London in 1911, estimated the profll tor 1918 al t& 

000; in t'aet the total waa (11.151,887. The net yield 
from gold-dredging tor last year waa estimated al 
11,850,000, and proved to hi It ia a brave 

tale of optimistic venture, bul a aorrj ■ of estimates 

ami performai 

It is . - \ • • 1 1 more difficult t.> form an estimate of the 
value of the lauds being reclaimed. In round numbers 

then- are 28,000 acres of irrigated lands ami 60,1 

of i tarnation lands, Mr, de Sabla said. In the ad- 
dress quoted, thai the land hail coal about (25 per acre 

This, however, makes but a small fracti !' the amount 

realized from sale of bonds alone, about (8,500,000, and 
there are still heavy payments on land to be t. That 

reclamation of land is itself profitable as well as good 
for the stat.- in which the land lies, has 1 n abundantly 

proved; provided always that the land be well chosen, 

ll mrineering and the estimates sound, and the mar 

I, it reasonably certain ami near in point of lime. The 
beal lands go begging at times and in places, and in- 
terest on money spent in throwing up embankments 

and putting in . Irains and irrigating ditches may well 

.■at up the profit on the work if the sab- of the land 
be slow. 

Another factor thai is not always sufficiently con- 
sidered is thill men- 1 lamalion of land is not all. The 

expense .0' preparing it for crops, the building of houses, 

barns, and fences is considerable, and must all be fig 
lircd into the cost. It must either be done by the ven- 
dor or its cost deducted from the price Ihal would 

otherwise be paid by purchaser. It is nol possible to 

sell bind, in any large way. except upon terms that 
permit the purchaser to earn good interest on his in- 
vestment, and it is not always possible to sell even 
good bind promptly. A recent investigation showed 

thai in California the mere cost of selling lands absorbs 

-Id per cent of the price realized, and the rotable failure 
of California to attract, settlers rapidly can undoubt- 
edly be laid to the absurd overvaluation of the lands 
on the market. An individual may make satisfactory 

returns from a few acres devoted to some special crop, 
but a state as large as France with only two-fifths of 
its population on the farms, must be content to attract 
settlers on an "alfalfa basis." Improved lauds of equal 
value can be bought in Europe today tor less than is 
being asked in California, while in Canada, Australia. 

and other new countries settlers are offered H twice- 

of excellent lands at prices still lower. These are facts 
that must, be taken into account when it, is proposed to 
reclaim and market any such area as 80,000 acres. We 



MINING AND SCIENTIFIC PRESS 



July 4. 1!H4 



would not pose as an expert on agricultural lands. We 
understand thai sum,- Natomas land is of hign value; 
some doubtless is doI worth the mdhey spent reclaim- 
ing it Such inequalities are inevitable when great areas 
are included in a single project. Bow much is good 
and how much bad, we do not know, nor are we aware 
of anj certain information available to the public or 
the bondholders answering this question. According 
to tlie Natomaa reporl of Deamber 31, last, a few 
have been leased for a '-ash rental of $10 per acre, 
ii the Larger amount leased is at $2.64 per acre. If 
all the irrigated and reclamation land be leased at $10 
i In return would still be less than 
enough to pay ii per rent interest on the valuation 
placed on the reclamation lands alone. This would 
ii necessary for the gold-dredging properties, val- 
ued bj the directors at $14,000,000, bu1 now estimated 
in contain about $10,000,000 net, of which the present 
value is perhaps half thai amount, to care for amor- 
tization. 

It is difficult to see liow the bonds are ever to In- 
paid in full except by the fortuitous influx of an un- 
heard of number of land buyers willing to pay top 
prices and do it quickly. This may he too pessimistic 
a view. If so. it is because adequate engineering studies 

either have not been made or their results are not avail- 
able to bondholders. Indeed, what is most wanted is 
more lighl upon the whole matter. The reorganization 
committee may indeed be proposing the only possible 
plan, but the Company is paying dear for a relatively 
small amount of money, and it is probable thai if the 
whole property were examined and full information 

given, competition would be invoked and better terms 
could be made. At any rate, bondholders are now very 
much in the dark and are asked to ad upon informa- 
tion that is entirely inadequate. They should look be- 
fore they leap. 

GOLD EXPORTS 



The movement of over $60,000,000 in gold bars and 

coin from the United States to European countries in 

the past six months has given rise to general interest 

and discussion. So far as this country is concerned, 
this unusual movement does not seem fraught with any 
profound or sinister significance. The gold reserves of 
the world are a fluid medium, flowing from the points 
where the pressure is higher to where it is less, and 
i In movemenl in one direction at a given time may 
be speedily followed by a reverse flow a short time later. 
We buy large quantities of merchandise from foreign 

countries: we sell even larger quantities to them in 
return. Large sums must lie annually paid to Euro- 
pean investors tor interest on their holdings in this 
country, and if the investors wish to leave the money 
her* for investment in new securities, or it' they wish 
to 'take out in trade' our indebtedness to them, inter- 
national dealings will lie marked by large exports of 

goods from the United States and small exports of 



specie, ibi tin- other hand, if European investors re- 
duce their purchases from us and show g desire to 
receive their interest return in specie for employment 
at home, merchandise exports will fall off and specie 
exports will increase. Such a situation Exists at the 
present time. The uncertain effect of the basic Legisla- 
tion affecting industry now under consideration at 
Washington. |he possibility of a crisis this autumn 

when fin- movemenl of crops of record size makes its 

annual strain on the financial situation here, and the 

unfortunate experiences which European holders of 

American railroad securities have gone through in the 

past tow years, all tend to discourage investment of 
European money in the United States at this time, while 

imports of European merchandise' have been stimulated 

by the recent decrease in the import tariffs. 

There arc other factors in Europe which enter into 
the situation as Well. The specie hoi. lings of the banks 

in Russia have been increased by $92,500,000 in the 

past year, standing at $902,113,00 -May 21. The 

holdings in Germany have been increased to almost an 
equal amount and now stand at a sum approximately 
one-half that of the banks in Russia. The adjustment 
of the Balkan trouble resulted in the practical removal 
of Turkey from Europe, but at no marked advantage 
to Russia: a country which urgently needs to gain 
an outlet to the Mediterranean sea. through the absorp- 
tion of the territory which stands in her path, or 
Otherwise. Russia has recently made a tremendous in- 
crease in the peace footing of her army, and there are 

those who see in these events the imminent possibility 

of war between Russia and Germany, the latter coun- 
try being a strong factor in the political readjustment 
recently concluded in the Balkan peninsula. This view- 
is certainly not without the bounds of possibility, 
though we profess no such familiarity with the inner 
workings of the chancelleries of Europe as would per- 
mit us to express a well informed opinion. Austria 
has also made large increases in her specie holdings. 
possibly also in preparation for war. as Austria would 
inevitably be drawn into such a conflict. In France a 
national loan of $350,000,000 has been authorized to 
provide, among other things, for military expansion, and 
the French banks have been building up their gold re- 
serve in preparation. -\11 in all. Europe does not seem 
at the presenl moment a desirable feeding ground for 

the dove of pet In the face of these conditions, 

the reserves of lb,- Hank of England have shrunk some 
$6,000,000 in the past year, although the receipts of 
liar gold and coin in England for the year ended in 
April amounted to $300,000,000. The view generally 
expressed in New York financial circles is that the pres- 
ent movemenl of gold to Europe practically came to an 
end with the shipments of specie which arrived in Eu- 
rope in time for the interest payments due on July I. 
iiiosr who think the business situation in America one 
of extreme difficulty have at least the consolation that 
the clouds on our financial horizon are not so threaten- 
ing as those on the other side of the Atlantic. 



July 4, 1-1 i 



M1\IV. \\l> m II \ I II h 1'KI SS 



Mefthodls ©IF Tefitimag Placeir Gravel 



I 



Mr w. J. rtAoroRD 



In tin- bananas days "i placer mining, when onl} 
■ueh pavel traeta as were of 'picture book' value were 
worked, with a do greater monetary outlay than was 
pa ne a a a r j to build a few aeetioua of sluice box and 
purchase loots, a verj rough pan sampling sufficed to 
determine whether the gold waa presenl in paying 
quantitiea Theae days, however, have passed and the 
present <la> placer miner is forced t" consider the lower 
grade gravels. To operate low-grade deposits at n 
profit requires the erection <>r purchase of plants cost 
inc man} thousands of dollars. With large sums in- 
volved and the lownesa of grade to be considered, the 
examining engineer of todaj lias a much greater rc- 
Bponaibilit) thrust upon him. To meel t li«-^,- new eon 
ilitimis more scientific and accurate systems for testing 

have l n evolved, which are the outcome of years of 

experiment and experiei Where, in the early days, 

were Btated in dollars, the} are now estimated 
in cents per cubic yard, and a few cents difference, one 
waj or the other, may mean the success or failure of an 
enterprise involving the investment of large sums. 

On many occasions I have been asked Bnch questions 
as the following: <>f whal degree of accuracy are 
gravel tests t' 'How closely will the estimated gravel 
value, as determined by examination, check with actual 
value, as found l>y operation?' To answer questions of 
this nature witl t an intimate knowledge of the tract 

tn lie tested is to a certain extent impossible. In such 

case, one can but refer to the results of operating con- 
cerns, each operation having its own peculiar condi- 
tions. 

Estimated ami Actual Value 
Before proceeding with a discussion of this subject. 

it would probably be advisable to explain the sense 
iii which the terms 'estimated value' and 'actual value' 
are used. By 'estimated value', is here meant the value 
per en hie yard of the gravel as determined by a series 
of tests. From this is deducted a certain varying per- 
centage for loss iii operation, the result being the esti- 
mated value of tin' gravel in dollars and cents. 'Actual 
value' is tin' value per cubic yard as computed from tlie 
gross bullion return'and the yardage treated. 

Theoretically, 'estimated value' and 'actual value' 
should be the same, but in practice there is found to lie 
a varying percental.''' of difference. This variation is 
dependent upon many factors, one or more of which 
may he the determining cause of the variation in any 
given case, such as local topography, character of metal 
content, character of gravel, presence of water, and 
methods of testing. Yet. even with these changing con- 
ditions, a certain uniform ratio should be maintained 
by adapting the method of testing to local conditions, 
that is. the method of testing one tract of gravel would 



not ueccmaril} apply to another, It is here that the 
personal equation enters into the question; the expor 

iciice uf the examining engii r, together with Ins 

faculty forjudging conditiona, goes a long way toward 
reducing tin- difference between 'estimated' and 
'actual' value. I shall briefly review the several meth- 
ods general!} used in testing placer deposits, and at 
tempi in show what degree uf reliability ma} res 

lily be eX| ted from each, as inferred from experiei 

in placer mi g examinations in both North and South 

America, 

Put i.imin h;v P i\ Testing 

This method is used primarily for determining the 

•_'ulil eon lent ul'a ura\ el deposit to learn if it will .just ily 
further and mure careful testing. 

The onlj tools necessary arc a standard gold pan. a 
pick, a shovel, and a tWO-foot rule or steel tape line. 

The fundamental requirement, however, is one that the 
engineer himself must possess, namely, the knowledge 
requisite to estimate accurately by observation the 

number of pans of gravel that will equal a cubic yard 
in place. The number of pans, filled evenly with the 
top, which will constitute a cubic yard in place varies 
from 20 I" 160, depending upon the degr I' coarse- 
ness "I' fineness of the material. About loll or 160 pans 
of sand are required to make a cubic yard, while for a 
ver} coarse gravel, not more than '.'0 or 30 are re- 
quired. All average gravel runs about (ill or 70 pans to 
the cubic yard. It is upon this point that the secret of 
obtaining accurate results largely depends, and this 
knowledge comes only from field experience and ex- 
periment. The bank in question may be dealt with as 
a whole and a figure representing the number of pans 
to tl ubic yard determined, or if there is a very de- 
cided variation in the character of the material, as is 
sometimes the case, it may be treated by strata, in 
which event each stratum will have its own factor to 
be applied when that particular stratum is tested. 

The method of procedure is as follows: ('lean off a 
face on the bank, say two feet in width and extending 

fi bedrock to top. removing the "ravel to at least 

6 or 8 inches in depth. This is a precaution that should 
always be observed if accurate results are desired. In 
case of leaching or surface concentration, this method 
insures more correct results, and if there should have 
been an attempt to salt the gravel, it tends to prevent 

fraud. For this work, in some eases, it will I onven- 

iciit to have a ladder, or it may even be n ssary to 

use ■, rone, allowing one's self to be raised or lowered 
from above. If the test is to be rough, the samples may 
be taken in a succession of steps at easily accessible 
points. Should this method be used, care must be taken 
noi to skip sections of the bank or to overlap, a feature 



6 



MINING AND SCIENTIFIC PRESS 



Inly 4. 1!H4 



which it is especially uecessarj to guard against. Hold. 
owing to the manner of its deposition, has a very 
marked tendency to lie in longitudinal streaks, more 
<>r li-ss paralleling the bedrock. These streaks may 
sometimes be exceptionally rich and yet be not more 

than one or two inches in thickness, hei missing or 

overlapping will give false results. It is advisable 
when removing the outside gravel to leave the face as 
smooth and even as the character of the gravel will 
permit, lints greatly facilitating the taking of the sam- 
ple. 

S win.ixo 

Wi . it tlie gravel face lias been satisfactorily prepared. 

start on bedrock and measure up one foot, putting a 
small wooden peg at that point, then, holding the pan 
• ii tie- bottom so as to eateli all looseneil gravel, start 
to remove the sample by menus of a small pick, work- 
ing from the bottom up to the height marked by the 
peg. The sample should he taken up and clown the 
first foot section in as nearly a Btraight line as the 

formation will permit, care being taken that an equal 

quantity of the gravel is removed from all portions 
alone the line of the cut. This method prevents ob- 
taining a false result which would ensue from taking 
too much or too little of any rich streak that might be 

present. Take sufficient gravel to fill the pan evenly, 

allowing all rocks which may he included to remain 
in the pan. 

The full pan of gravel is then taken to ; nveltient 

pool and carefully panned, colors being counted. 
Record tie- number of colors, position of the sample. 

and the estimated number of pans to the cubic yard for 
that particular stratum. Sample the next foot in a 
similar manner, continuing the work until the hank has 
been sampled a foot at a time. When the sampling 
is Completed, a small cut will have been taken from 

top to bottom. 

If the gravel in the hank is fairly uniform and is to 

he treated as a whole, the colors from each successive 
foot may be put together in a small vessel for weigh- 
ing, but if on the other hand, the bank has 1 n divided 

into several strata, all colors from the same stratum 

should be put together, each stratum being figured 

separately. 

The calculating of results is simple. The gold ob- 
tained is carefully cleaned and weighed and its value 
in dollars and cents determined. This sum is then 
divided by the number of pans taken and the result 
multiplied by the estimated factor which gives the 
value per cubic yard for the bank. The following is 
an example taken from actual work. The bank in this 
instance was in ft. high, ami from it 111 pans were 
taken. The "old recovered weighed 30.4 mg. with value 
for this locality of 1.76c. orfl.lTlie. per pan. T estimated 
70 pans to the cubic yard, giving a bank value of 12.3c. 
per cubic \ aid. The following limy be given as another 
example in which it was found necessary to sample 
the separate strata owing to a very considerable dif- 
ference i • i the character of the gravel. Height of bank 



35 ft. divided into two strata of 14 and 21 ft. in thick- 
ness: for tin' 14-ft. stratum 40 pans to the cubic yard 
was allowed and 70 for the 21-ft. stratum: weight of 
gold obtained from the 14-ft. stratum 160 mg. with 
value of 9.25c; fourteen pans were taken giving a 
value of 0.66c. per pan to which, applying the esti- 
mate, | factor of 40. ga»e a stratum value of 26.4e. per 
cubic yard. 9ot the 21-ft. stratum the gold recovered 
weighed 6-1 mg. with value of 3.7c, giving a pan value 
of 0.18c, multiplying this by 70 gave a value of 12.6c. 
per cubic yard for the stratum. Now. to obtain a eor- 

I t bank value the above results are averaged taking 

into n< unt value and thickness of strata as follows: 

14 X 0.264 = 3.696 
21 X 0.126 = 2.646 

35 6.342 

6.342 : 35 = 18.12c. per cubic- yard, value of the hank 

from top to bottom. 

This method of testing, while rough, if carefully done 
will give fairly accurate results, as evidenced by the 
following: On one occasion I sampled a 17-ft. bank 
by the above pan method, obtaining a value for the 
gravel of 6.5c. per cubic yard. A few days later this 
same bank was tested with a carefully measured cut 
from top to bottom, washing, by means of a l ker 

127.8 cu. ft. of gravel (measured in place) from which 

was obtained a result of 6.6e. per cubic yard. On sev- 
eral other occasions where I have checked my testing. 
results have been obtained which checked within one 
or two cents. Bh owing that a fair degree of reliance 
may be placed on this method of preliminary samp- 
ling. 

Advantages op I* \n Testing 

Pan testing is particularly useful in that it tends 
greatly to reduce the time and expense necessary for 
making a preliminary examination of an extensive 

territory. It enables an engineer to eliminate quickly 
those areas which are of too low grade to be considered. 
Tin- saving in expense alone makes this method worthy 
of special consideration. I found, in the tropics, that 
with an assistant and possibly a native to carry pick 
and shovel. 1 could go over and test an extensive area 
of gravel in a single day. determining what parts 
should be abandoned and picking out those worthy of 
a more thorough examination. Often it would be 
found that whole areas did not deserve a second visit. 
To prospect this same area by one of the more elabor- 
ate methods would necessitate Hie transporting of rock- 
ers, tools, and other paraphernalia to the scene of the 
work, the employing of from five to ten natives with 
one or two extra white men to make the cuts and run 
the rockers, besides consuming from five to ten days 
in the performance of the work. The result of all such 
labor, time, and expense would merely prove that the 
gravel was not of sufficient value to warrant con- 
sideration. It is needless to demonstrate further the 
saving in dollars and cents thai may be effected by 



• ill* 4, fin 



MIMV. WD m II \ I II K |»|<l SS 



nigh know ledge .'i ihr pan Ihod of prelim 

Iraonfl tli. in.. i.- thorough anil reliable methods nl 

t ill.- next in order i- somewhat analogous to 

ui method, though eoiudderably more exact in ik 

It i> thai of meaaiired nits. I nder ortliimn 

ronditiona, if rarefultj done, thin method w probably 

ih. moat trustworthy, Riving result* as accurate «s 

ih. .v. obtained from aotnal placer operations By tins 

method the gold contained in ■ known volui t 

gravel, meaaiired in place, i- aaoertained by careful 

ng. There are ineertain factors to determine 

or eatimate such ;^ the expansion in volume of gravel 
ou1 of place, and bj reason of the fact that the figures 
For gold obtained are baaed upon the gravel deposit, 
in titv. dependable reanlta are by no means bo difficult 
t.. r. aeh, 

\. • m m \ of tiii. Method 

The degree of acenraej is commensurate w ith the size 
..r the sample, yel judgment must be used to keep the 
volume of the sample in proportion tu the size of tlu> 
Imnk exposure, with due regard also to the item of ex- 
pense. Beyond certain limits, the results from an exces- 
sively large sample may not be more accurate than 
from one of smaller proportions, while to handle the 
largi r sample will entail considerably more expense. 
The m/.- "f the sample t<> be taken will also greatly de- 
pend upon the character and distribution of the gold 
• ■•>iit.-tit. The .-i\ <-i-;ilt'- assay of a gravel deposit in which 
the gold is fine and evenlj distributed throughout, may 
he determined by a much smaller sample than one in 
which the gold occurs as nuggets which are perhaps 
widely disseminated. When there is a reasonable donbt 
as to the volume i>f sample t" be taken, it is far better 
for the examining engineer to take the sample too 
large than to run the risk of obtaining False results by 
taking too small a sample. 

The volume having I n determined, the bank is 

cleaned off from top to bottom as in the method of pan 
sampling, a sufficient width being taken to leave a 
Foot on either side of the proposed cut. The gravel is 
then removed for washing. Too much care cannot lie 
taken in picking out the sample in order to keep the 
cut of uniform size ami to prevent caving or break- 
ing of its sides. It' the gravel is fairly compact and 
homogei ns. little trouble will la- experienced. If, 

on the other hand, the gravel is loose, sandy, and in- 
terspersed with large sized rocks having a tendency to 
loosen easily and fall out, some difficulty may be en- 
countered. 

Assuming that the hank- to la- sampled is :{."> Ft. in 
height and that it has been decided to take a cut From 
top to bottom 2 ft. in width and 1.5 ft. in depth, begin 
on bedrock picking out the gravel, working from the 
centre of the cut toward both edges, but not approach- 
ing to within more than 2 or 3 in. of the final width 
and depth. This work may he done rapidly. When 
a considerable quantity of the gravel has been removed 
begin with great care trimming. Little bv little the 



gravel i* i. v.- I until tli.- exact two feel ill width baa 

•lit lined Willi H depth lllto tile bank ■•! 18 III. lies 

For accurate work it will he t id advisable to make a 

templet From a piece of i .1 Tins, in the hands of 

a careful workman, will give verj its Borne 

times in i ring gravel a large sued boulder extend 

mil; partly into the cut ma.\ be encountered, a portion 
of it being Hrnil) imbedded in the surrounding gravel 
To rem. .v.- tins boulder would probably bring into the 
sample a quantity of excess gravel. In such earn 
is adviaabli to pick carefully around the pari project 

lllg into the eut ami allow it to remain, because, as can 
In- readily seen, this will nol in an] way affect the re- 
sults of the test. Iii this manner proceed to the top, at 

all times keeping the depth of the eul exactly is inches. 

If the hank is higher than can he easih reached, a lad- 
der or rope may be used to work from. When taking 
samples from a high hank it will be found advisable 

to use a eanvas sheet spread at the bottom, as the 

gravel dropping from such a height will have a ten 

deiiex to Scatter. Often it is a good plan to use two 

pieces of eanvas, one at the bottom and the other hung 
on the face of the hank over the eut. This precaution 
confines the loose gravel to the cut and it will drop to 
the bottom as through a pipe or shoot. 

In soi ases owing to configuration of the hank, it 

iiiii.v he impossible to make a continuous cut from top to 
bottom in which event it can be taken in sections; care 
being used, as previously mentioned, nol to omit or 
overlap ally portion of the hank. 

The gravel as removed is carefully washed by means 
of a rocker. When all gravel has been washed and 

the cut carefully checked as regards ; nracy of meas- 
urements, the recovered gold is cleaned, weighed, and 
the gravel value calculated, as follows: 



105 



•u. ft. 



Cut 1.5 X 2 X 35 = 
105 : 27:: 20.7 : X. 

X = 3.3e. per cu. yd., hank value. 

Results by this method are as reliable as any that 
can be obtained, if work has been carefully and scien- 
tifically done. A deposit of gravel tested by a suf- 
ficient number of these cuts so as to obtain a fair aver- 
age can be relied upon to yield results that will check 
very closely with those obtained by actual mining oper- 
ations. 

Deposits Suitable to this Method 

The particular method of testiiiL' described above is 
only applicable to such deposits as have a fairly per- 
pendicular hank exposure from bedrock- to grass roots 
such as may be found on the stream side of bench de- 
posits. Where no such exposures exist, resort must be 
had to another form of the measured cut system — that 
of shaft sinking. Where accurate results are desired, 

this thod is limited to such areas as have little or no 

bedrock water. To sink a shaft where from two to 
three feet of water may be encountered on bedrock and 
to obtain results that will even approximate true con- 
ditions, is almost a physical impossibility: therefore. 



8 



MINING AND SCIENTIFIC PRESS 



July 4. 1!<14 



when this condition exists, other methods which will be 
considered later should be adopted. 

When testing by means of shafts, one of two systems 

may be used. The shaft may be sunk to bedrock, keep- 
ing it to an accurately measured size and washing all 
the gravel obtained ; or, the shaft may be sunk to bed- 
rock and made of such size that it can easily be worked 
in. When bedrock is reached, measured cuts can be 
taken from top to bottom in the sides. If all the gravel 
is to be washed, it is customary to sink the shaft of 
such dimensions that every three feet in depth will 
represent a cubic yard in place. Circular shafts should 
have a diameter of 3 ft. 5 in., while rectangular shafts 
are made 2 ft. 3 in. by 4 ft.; both of these sizes, 
while small, are sufficiently large fur an experienced 
shaft man. Of the two styles. I prefer the circular 
shaft, as the gravel will stand better and I here is less 

trouble from caving. Where timbering has to be 

done, the rectangular shape will, however, be found 
preferable. For the circular shaft, a templet made 
by nailing together in the form of a cross, two pieces 

of wood measuring 3.4 ft. in length is convenient. 
This templet may he suspended from the centre bj 

a cord and can be raise, 1 or lowered in the shaft, 
thus keeping the shaft of a uniform size as sinking 
progresses. Care must be taken not to gouge the 
sides, but the shaft should lie kept as symmetrical as 
possible at all times. When bedrock has been reached. 
it should be thoroughly and carefully cleaned. It is 
good practice to sink a foot or two into the bedrock in 
order to make sure that all gold has been recovered. All 
gravel as removed is carefully washed in a rocker. The 
washing should be kept abreast of the sinking in order 
that, by obser\ inij the returns, the depth and position 
of pay-streaks may be noted. The recovered gold is 
cleaned, weighed, and results figured. The depth of 
the shaft gives the yardage contained in the sample. 

Prospect Sb upts 

When cuts are to be taken down the sides, make the 
shaft of such size that it will permit of rapid sinking. 
For this method the rectangular shape will be found 
more convenient than the circular. After the shaft 
has reached bedrock, carefully remove all loose ma- 
terial ami pick down the sample from one of the sides 
or ends, keeping the cut to exact dimensions as pre- 
viously described. The sample is hoisted out by bucket 
ami carefully washed, the value per cubic yard being 
determined as already described. If the testing is to be 
thorough, two cuts may be taken, one from either end. 
or one from a side and one from an end. or any such 
combination as the man in charge may elect. The work 
of taking the cut can be greatly facilitated if. when 
sinking the shaft, care is taken to keep the side or end 
from which sample is to be taken as true and uniform 
as possible. 

Of the two methods, that of washing all the grave) 
removed, is the more reliable, owing to the larger 
volume of the sample and the proportionate reduction 
in error din to possible loss of gold. Against this, how- 



ever, must be considered the increase in time and ex- 
pense incident to the handling of a greater volume of 
gravel. Furthermore, if the gravel has a tendency to 
Loosen and cave, it is sometimes impossible to pick an 
accurate cut down the sides; often a circular shaft, if 
quickly sunk, will stand sufficiently long to reach bed- 
rock and obtain the complete sample. In recent testing, 
in a somewhat loose and sandy gravel, I found in every 
case that a fairly uniform circular shaft could be sunk 
to bedrock and a complete sample obtained where my 
attempt to take a cut in the sides resulted in extensive 
caving and the ultimate loss of the shaft. 

Another form of testing which should be properly 
classed under the head of measured cuts, is that of 
bedrock driving. This is applicable to bench deposits 
where it has been determined that all gold lies in tin- 
foot or two of gravel resting on bedrock. To prospect 
such a deposit across the full width of the bench by 
pits, would entail the sinking of several very deep and 
expensive shafts, while much more reliable results can 
be obtained at much less expense by driving on bed- 
rock. Care should be taken in all such cases to have the 
drift at right angles to the line of flow, otherwise er- 
roneous results will be obtained. As samples of this 
nature are necessarily large in volume, the same degree 
of care in washing and handling is not required is tor 
those of lesser volume. To save time, the gravel may be 
washed by means of a small and carefully constructed 
series of sluice-boxes, the boxes being of sufficient length 
to ensure complete recovery. This method very closely 
approximates actual operating conditions. In obtain- 
ing results by this method, it is the general practice to 
base figures upon the value of gold recovered per square 
yard of bedrock uncovered, from which, when the aver- 
age height of gravel on bedrock along the line of the 
drift has been determined, the value per cubic yard is 
computed. The one measurement to lie watched in this 
work is the width of the drift. This should be uniform 
and great care should be taken not to gouge into the 
sides and thus obtain an excess of the rich pay-streak. 

The following case, from my experience, will serve as 
an example of the above method. There was a bench 
deposit which on the stream edge measured 24 t't. in 
height, increasing rapidly but uniformly to 39 ft. on the 
inside. The gold lay in a streak on bedrock varying 
from 18 to 24 in. thick, everything above this streak 
being practically barren. It was obvious that the most 
accurate and the quickest way of testing this deposit 
was by means of a bedrock drift at right angles to the 
line of flow. A drift of uniform width (4.5 ft. was 
maintained and all gravel removed was washed through 
sluice boxes which were cleaned up every evening. 
After driving 52.5 ft. the other rim of the bench was 
reached. From this drift gold to the value of $131.40 
was obtained and 26.25 sq. yd. of bedrock uncovered. 
which yielded assays of approximately $5 per sq. yd. 
of bedrock cleaned. By survey over the line of the 
drift. I found the average depth to lie 10.3 yd., which 
gave a value to the gravel in the deposit of 48.5c. per 
cubic vard. 



I I'M I 



MIMV. WD MUM || |, l-Ki ss 



rook Kr«\.-i ..' ramp) or thai 

or in which tli.- gravel 

'■• admH of thafl linking, the before <!•■ 

i in.tli.i.K are nol applicable and raaorl most be 
• • meehanieaJ nn-iin-. for obtaining aamplea The 

mual widely usi-,1 thanical method adapted to this 

kind •■! work i> tint ..f cliurii drilling. Much bai al- 
i » riii. n regarding this method of testing 
depoait*. and the proeeaa will nol I"- deaoribed 
in detail • 

01 Pom i ■ Dan u 

Bristly, the ilrill method sists of forcing a pipe or 

rasing through the gravel to bedrock, removing the 
I from the interior as the easing descends, the re 
moved gravel being carefully washed and gold reco> 
••nil. Por this work two sites .'i' eaaing are employed, 

■ •I' 4 and 6 in. diameter, immh; of greater .lb ter be 

ing rarelj used. Tin area enclosed bj tl atting Bhoe 

on tin- end of ;i piece of 6-in. casing varies from about 
0.196 i.i 0.25 dI' :i Bqnare foot, which is equivalent ap- 
proximately to the 0.000005 pari of the area of an acre, 
;m infinitesimal quantity. In tin- sunn- way, the volume 
..t' gravel removed from a drill-hole is relatively very 
small iis compared to the volume of gravel contained 
in .in acre, which goes to show what a very small pro- 
portion of tin. metal contents of an acre one hole would 
Should the character of the gravel in the acre 
be entirely homogeneous, with gold distributed through- 
out every part and all particles of equal weight, then 
out' hole t.. a given tract would afford an accurate de- 
i. tiiiinatii.il of the gravel value for that tract, as every 
Other hole put down would In' lint a repetition of the 
first Such conditions unfortunately rarely, if ever, 
exist. A hole might descend into an almost barren 
region which would not. perhaps, be inure than 7 or 8 
in. Ins in diameter, while the adjacent gravel would 
he of high grade; or. on the other hand, the pipe in its 
downward course might enclose within its 0.25 sq. ft. 
ot area the only existing nugget within the whole tract. 
In the one case a negative result would be obtained 
where it should be high, while in the other case, a high 
result where it should be low. This brings out a point of 
prime importance, namely, that the value of the gravel 
in any triven tract cannot be determined by the results 
from individual holes but must be based upon an aver- 
age of results from many boles. T have in mind n 
piece of dredging ground now under operation which 
aptly illustrates the above. Tin- gold in this property 
was coarse and nnggcty. with areas of high and low 
value. During the dredging operation careful Match 
was kept to determine, as closely as conditions would 
permit, the degree of variation between the actual value 
88 shown by the dredge operations and the estimated 
value as determined by the drill tests. Tt was found 
that this variation in a great many eases amounted to 
10c. to 15c. per cubic yard as shown by individual drill 
boles, yet the dredge returns for the whole area gave 
an average value per cubic yard which approximated 
within 2% of the average value of the gravel as com- 
puted from the drill tests. 



In <■ preliminary drilling it is oual irj to 

holes in I s sometimes BOO or unki ft. apart with 800 

"' I '■ feOl between the hole This would DM 

average ..t two holes or teas to the tore In the final 

drilling, hobs ma.\ be placed ')" tl apart with a .lis 

'•" between lines of L'l N I ft Tills Would o|il\ make 

Bible 8 holes to the acre. Vet su.'l, is (lie law of 

Compensation that an average of all holes will cue a 
lairU reliable idea of tl,, gold tent of the gravel. 

The average value shown by the eight holes to tin- acre 

would be far more accurate than that of the two to 

the acre. The degree of ro 1 1 a 1> 1 1 1 1 > of r.suits obtained 
by drilling a given tract is largely dependent upon the 
number of holes drilled in that tract. 
Besides the above, another feature greatly affeota re- 

suits and that is the amount of care and thought used 
in putting down holes. In drilling placer deposits, 
owing to their generally shallow nature, it is easy 
enough to put down a hole to bedrock, but to put that 
bole down in such a manner as to obtain at all times 
an accurate sample of grave] for every foot is quite 
another matter. Qreat care must be taken when in 
tight or hard driving ground, not to force or push out of 
the way gravel which rightfully belongs within the 
sample or. on the other hand, when in loose running 
ground, not to include gravel which does not belong in 
the sample. These are points which must be carefully 
watched and steps taken to prevent their occurrence 
or. if unavoidable, the excesses or discrepancies in 
volume noted and allowed for when final computations 
arc made. It is here that the skill and experience of the 
examining engineer enters into the reliability factor. 

Use ok thk Hand-Drill 

Much consideration also must be given to the type of 
drill used. Some machines, because of their method of 
operation, naturally give more trustworthy results than 
others. Of the types now on the market, probably the 
most reliable, and one which more nearly approaches 
the ideal method of sampling, is the hand drill. This 
with its rotating cutting shoe, which bores into the 
gravel descending by its own weight, comes as near 
cutting out a true cylindrical sample of the gravel from 
top to bedrock as it is possible to obtain. Steam ma- 
chines which depend on heavy blows to drive down the 
casing, with the accompanying dropping of the heavy 
stem, cause such a loosening and disturbance in the sur- 
rounding gravel that an increase in the volume of the 
sample extracted is nearly always found. However, it 
has been demonstrated that in a carefully drilled piece 
of placer gravel, the estimated gold content in dollars, 
as based on drill-hole results, will approximate within 
less than 5% of the actual bullion value as extracted by 
the dredge. 

In conclusion, when asked the degree of reliability 
to lie placed on any placer examination, it is necessary 
to first know the general characteristics of the deposit 
to he examined, secondly, the method of testing to be 
employed, and, thirdly, the care and experience of the 
examining engineer. 



10 



MINING AND SCIENTIFIC PRESS 



July 4. 1914 




nivffr-iMo--. i 



THE WATKR rK'»\r Al KKTC IIIKAX. ALASKA. 



JisuHinig Revival nna ftla© KefocMIs&ini Dnslbriidt. Alaska 



B> £. £. HURJA 



The Ketchikan mining district, southernmost of 
Alaska's mineral belts, comprises 9370 sq. mi. of terri- 
tory, Hi' which about half is represented by islands. The 
largest insular bod} is Prince of Wales island, the next 
is Revillagigedo island, the one with an area of 2800 
and the other with 1120 sq. mi. Although prospectors, 
attracted by the Klondike and Juneau goldfields, have 
passed through the Ketchikan district for nearly two 

decades, no real exploration was dune until aliout 
1900. So far as known, no attempt was made to seek 
mineral wealth daring the Russian occupation of the 
territory. Charles Baranovich, a Russian merchant, is 
reported to have prospected for copper near Kassan 

village SOOn after the American occupation of Alaska. 

but nothing further is known, .lames Bawden, still a 
resident of Ketchikan, discovered workable deposits of 
gold on the eastern side of Annette island in 1892. 

William Barnard found gold and copper near Kasaan 

village in 1893; other discoveries were made in 1893 
and from 1899 to 1901 there was considerable mining 

activity. Many hundreds of claims were staked. 
Ketchikan is the supply centre for the entire district. 

It is situated no the west side of Revillagigedo island 
and nn the cast side of TongaSS Narrows. It is 660 
miles northwest of Seattle and 240 miles southeast of 
Juneau. Salmon canneries, sawmills, fertilizer factor- 
ies and other minor industries supplement ininiiii.'. It 
has a number of stores, is a port of entry, and has a 
population of about 1500. 

Copper in the Ketchikan district occurs in irregular 
lenses and is mined generally bjJ following the orebody. 
The bulk of the copper ore is ehalcopyrite and cuprif- 
erous pyrite. accompanied by magnetite, pyrrhotite. 



anil other sulphide minerals. Development has 
slow and there are not many producing mines in tin- 
district. Abundant water-power is available on nearly 
every island, while the resources of hemlock, sprue,-, 
ami cedar furnish ample timber for present needs. 

The oldest regular producer in the district is the 
Jumbo property near the head of Iletta inlet, on the 
west coast of Prince of Wales island. It is operated 
by tin- Alaska Industrial Co.. of New York, of which 
Charles A. Sulzer is manager. A depth of 800 ft. has 
been attained on tin- orebody. with a winze put down 
'2<io ft. below the lowest working level, No. 4. Ship- 
ments to the Taeoma smelter are being made at the 
rate of 1000 tons per month. 'Pin- Copper Mountain 
group of claims at Iletta inlet have been taken over 
by the Alaska Consolidated Mining & Smelting Co.. of 
Dulitth. .Minnesota, and are being developed under the 
directif f R. L. Kilpatrick. superintendent. A smelt- 
ing plant of 250 tons daily capacity has been idle since 

1H07. Prospecting is being done on the Red Wing 

group of claims, near the entrance to Iletta inlet. Small 
shipments of ore from tin- vein deposit on the Red 
Wing claim have Keen sent to the smelter at irregular 
intervals since 100:i. 

Kasaan B\v ( i.mms 

Rush & Brown, operating on & group of claims near 
the head of Kasaan hay. have been shipping at intervals 
since 1906. Regular shipments are now made at the 
rate of 300 tons per month. A depth of 184 ft. on the 
orebody has been increased by 50 ft. during the pasl 

year. Ore is being mined from both the magnetite and 
sulphide oreliodies. A railroad 8% miles in length eon- 



Julj I. !••! I 



MIMNi. WD N II \ I II |> CKI SS 



II 



tin- linn- « ii ml w harf. Tim 

ro •- lui mt tit tin- ti< I 

veloped \«ii\. gold nml •-lialiiip.il i 111 tin- 

1 or* in 'I ■ property, A shipment is 

being prepared now for smelting Devel 

nl wink mi III.- Ml Andrew prop 

lit the Inn. I m l.a> 'JT 

miles in. in K< i. -iiikaii. ".is resumed In 
January, under llie din w .1 

Kori ii. m. I. ni The rlaiuut are 

being, patent The property 

is owned by Ihe Andrew estate of Bng 
Inn. I ami lias made numerous shipments 

V ible tram". f| long ■■ ii'. 'Is 

the mine »itl> Ihe wharf. si\ different 
nml irregular ore masses have been 
opened. 

I 1 ••■ t" ill.- advenl mt>> ill.- Ketchikan 
district of the Grnnbj Consolidated M. 8. 
' " . work «ill be resumed on the 
Mamie group on Kasaan peninsula, near 
Hadley, :io miles northwest of Ketchikan. 
The Qranby company lias boughl and 
pniil for tlir property, .-ni<l lias started to 
place the buildings and trams in condi- 
tion for a resumption of active develop- 
ment. A contracl t.> explore the claims 
with a diamond-drill lias been made. The 
other acquisitions of the Granby company 
in the Ketchikan district are the It and 
Dean mines, near the head of Kasaan bay, 
three miles from Kasaan. The It prop- 
erty is equipped »itli a steam power- 
plant, ore bunkers, dock, and train. The 
new owners expeel t.i start work July 1. 
Tin Dean •.'roup, adjoining the It. will !«• 
worked in conjunction with the Tt. Pour 
hundred feel of development work has 
been done on tin- Dean and a depth from 
the surfi of 80 ft. attained. 

'I'm: V w.i-ui uso < 'i.wms 

Plans to resume work on a large scale 
(,u tlir Valparaiso group of claims, a mile 
and a half Ijroni Dolomi, and owned by 

the I'ri ton M. A: M. Co., have been 

completed and are being carried out un- 
der B. A. Kai'illiv. manager. On .rum' 
11. fifteen i.ms of machinery left Ketchi- 
kan for the property. Work on the 
claims was discontinued in the fall of 
19J3 because of water; bul during the 
winter a 6'00-ft. drainage adit was driven, 
so the mine again is unwatered, A five- 
drill water-operated compressor will be used in supply- 
ing ore for the 10-stamp mill, which is operated in con- 
nrction with a Chilean mill, giving a capacity of 50 
tons per day. The ore is a gold-hearing quartz in a 
fissure vein. 



The Ala- 1.1,1 ,.| l.om! 

■ubatoiarj ul tin i. 1 Proprii I 

Vuatralia, hai leqnirrd |hr Old Oloi | group 

••" s " ' I p> miisiiia 2! lea north 




l. 

2. 



ENTRANCE in Rl sir ami hkown mini:. 

MINK TKKMINAI. (II BOSH AND BltOWX ll.UI .IIUAH. 
RAILROAD TERMINAL AT HEAD or KASAAN BAY, I'imm I 01 



ul Ketchikan, from .Martin Bugge and associates. The 
final payment was made in February. J. T. Hollow, of 
London, engineer for the Company, is now at Ketchi- 
kan, preparing to install the prospecting plant on the 
claims. The improvements include a three-drill com- 



12 



MINING AND SCIENTIFIC PRESS 



July 4, 1914 



pressor and ;i dam for the power-plant. Forty thousand 
dollars has been allotted bj the Company for prelimi- 
nary prospecting. Work has been resumed 1000 ft. be- 
low the old adit. Fifteen hundred feet of adil has 
been driven and two small low-grade orebodies have 
been cut. The adil will be continued 600 ft., to cul 
tbe main orcbody. B. T. Leahy is superintendent for 

the Company. The ore is fr milling. The Alaska 

Venture Syndicate lias taken an option cm the Gold- 
stream mine on Qravina island, three miles from 
Ketchikan, and is preparing to resume development 
work on the claims. Owing to a lack of funds, the 
Moonshine silver-lead property, on Cholmondeley 
so mil. owned by the Sunshine Minim; Co., is idle. One 
hundred and fifty tons of ore is on the dump awaiting 
shipment. 

A thorough sampling and examination of the Julia 
group and Humboldt claims, on 12-Mile arm > >f Kasaan 
bay, 40 miles from Ketchikan, lias been made by engin- 
eers of tin' Alaska-Gastineau company. The property 
is owned bj M. K. and J. H. Bodgers and has been 
operated for a year and a half nnder bond and lease- 
by M. M. Reese and II. Webber. The vein is from two 
tc. 1J ft. wide. A small compressor plant aud a five- 
stamp mill, both operated by water-power, are at work 
on the property. Mr. Reese is now at Juneau, con- 
ferring with the Alaska-Gastineau company officials 
over the possible sale of the claims. 

The Crackerjack Property 

The Crackerjack group of gold claims, but n ntly 

out of litigation, and which has 1 n idle for a number 

of years, is being developed by the owners. James 

Bawden and Morris McMicken. The property is a mile 
north of the Julia group. The vein has a width of 
from 2 to 14 ft. and assays from $8 to $15 jeer ton. 
The underground development work aggregates 2864 
ft. A preliminary sampling was completed last week 
by M. Nash, of Juneau, reported to be acting for foreign 
capital. Adjoining the Crackerjack is the Ready Bul- 
lion properly, on which a five-stamp mill is operating. 
The property is owned by Webber S: McKenzie. A new 
level has been opened up, at a depth of 170 ft. Three 
hundred feet of drift has been driven on the vein. 
Mill runs show a value of $30 per ton. The vein is 
narrow. The Cascade property, four miles from ITollis. 
has been examined by engineers and is under bond. 
The claims are owned by ('. Radenbaugh, who has 
operated an arrastre and a two-stamp mill successfully 
on the property during the past two years. Eight 
miles from tidewater at Hollis. and west of the Cracker- 
jack group, is the Lucky Xell group, owned by G. W. 
and Fred Gervais. Thirty tons of ore was shipped out 
last winter to tin- smelter. Forty-six dollars per ton 
was obtained, which netted +33 per ton after smelting 
and freighting charges had been paid. Adjoining the 
Lucky Xell group are the Commander claims, owned 
by Oust Detlefson. Development in a small way is 
being carried on. 

O. Jacobsen and E. Olsby are prospecting the Bruce 



group nl' seven copper claims, four miles from Sul/.er. 
The property has on it two 60-hp. boilers, one six-drill 
Rand compressor, and other machinery, as well as build- 
ings. Since the dock collapsed in 1913 when a 300-ton 
shipment of cue- was being loaded on a ship, nothing 

has I ii done. Wright & Reynolds, working on 

Xutqua lagoon on the west coast of Prince of Wales 
island, have- a vein varying in width from two to six 
feet. An adi*200 ft. long has been driven and 180 ft. 
from the portal, a winze sunk on the vein. Work on 
the big adit of the Northland Development company 
at its copper property 10 miles from Craig is progres- 
sing. Stoping on the nrebody has been started. Ii. 

Tucker is manager. 

A group of seven claims is owned by Richard 
Nuckolls and Gundar Nygard on Revillagigedo island 
at Thorne arm. 25 miles from Ketchikan. Open-cut 
prospecting has uncovered a vein 15 to 30 ft. wide for 

a distance of 3 ft. King & Gilmour are developing 

the Sea Level claim, one of the first in the district, mi 
which a 30-stamp mill was erected alter 50 ft. of shaft 

had been sunk. Development work on the Wild West 
group, owned by Mrs. Al. Smith, is going on. The 
Gold Banner claim, owned by Bert Steers, has an adit 
SO ft. long which cuts a vein six feet wide. The owner 
is prospecting mi the surface at present. 

The Gold Standard was the first claim discovered 
in the Helm bay district, having been found in 11)00 
by Johnson and Dyer. It is owned by Nuckolls. .1. E. 
Chilberg, and ('. E. Ingersoll. A test shipment made 
last month has shown a value of .+5 per ton said to 
represent a face 130 ft. wide. Two miles north of the 
(lold Standard is the King & Elliott group, recently 
discovered and under bond for +60.000. The group 
consists of four claims. Several shipments of low-grado 
ore have been made from the Gold Mountain group, 
owned by Richard Nuckolls. Three hundred feet of 
adit has been driven along the vein at a depth of 200 ft. 
Tlie vein is .'ill ft. in width. The tests show ore worth 
$6 per ton. Poison & Ickis have a copper and gold 
property on McLean arm, 40 miles from Ketchikan, 
known as the Veta group. Two chalcopyrite deposits 
have been developed for a total distance of 265 feet. 

Marble Deposits 

In addition to copper and gold, marble forms one of 
the mineral resources of the Ketchikan district. The 
Vermont Marble company owns a total area of 703.246 
acres of land, and operates a quarry at Tokeen, near 
the northern end of Prince of Wales island. Edward 
Brown, an assayer, who has been in Ketchikan for 11 
years, says he has examined specimens of chrome iron, 
manganese, tin. scheelite. and platinum which were 
brought in by prospectors from different parts of the 
Ketchikan mining district. The United States recorder 
for the Ketchikan district reports that since 1002 a total 
of 4250 claims have been staked in the district, of which 
a larger portion has lapsed. Thirty placer claims have 
been recorded on the Unnk river, about 60 miles from 
Ketchikan. 



Jul; » ■•"» 



MINIM. WD m II M II U l'KI SS 



II 



Dust Chambers a4 ftfine AsM© 
Smdfteir 8 



i. in. 15, 1912 ili' Imperial government uf Japan 

: H lull requiring the Japanese smelters o> install 

equipment iiu ili< elimination of swelter dual aud fume, 

which in innii.v m>iiii s bad become a menace i" agri 

culture and bad destroyed the vegetation in the vicin- 

■ the ninelteri This loll affected Bve smelters in 

Japan, nml equipment ii oon being inatalled at the dif 

• .1.11 1 plants i t the requirements of thi-. law. In 

the accompanying drawings there is presented two 

sections through the new reinfor I concrete dmtl 

chambers at the A-ln.. Copper Co.'s smelter and a pari 

plan »f tl bamber building. This work, which is in 

irae of construction, will probably be finished b) the 

firs! of November. 

At the Ashio planl there are three furnaces in opera- 
tion, with .ii tput of about 50,000 lb. of copper per 

day. Prom s charge made up of 11.591 ' '"• '-'' ■''■ '' r 
s. 0.659 A - ; "' ; SiO„ an.l ','\ Al.n , :, 
■■I i extraction of the copper is obtained. The gases 
from the furnaces were formerly allowed to escape 
directlj into the air. whicb has resulted in the killing 
of all vegetation within an area of one-half mile radius 
from (he planl and permitting of hut little vegetation 
within ii mile from the plant. The volnn f SO. escap- 
ing in t<> the sir is over 24oo en. ft. per minute. The 
smelting planl is an interesting one since pari precipi- 
tation of the SO. is effected by the use of lime water. 

The flues and dust chambers are built of reinforced 
concrete with but little metal exposed io the action of 
the fumes. The gases from the furnaces pass through 
a dust separator as shown in the diagram. Here a spiral 
motion is imparted to the gases and a large per rent of 
the ilnst is deposited and drawn from the cone-shaped 
hopper in the bottom. From the separator the gas 
passes up an incline Hue. in the lower end of which are 
several hoppers in which the dust collects. At the top 
of the flue the u'as passes through a series of chambers 
before it enters the main chamber house. Up to this 

point and in the first few hoppers in the chamber house 

the dual that is collected in the hoppers will contain 
copper iii sufficient quantity to make it of commercial 
importance and will be subsequently recovered. In the 

chamber house proper the dust will contain such a high 
per rent of arsenic, zinc, and other impurities that it 
will he of no value and will be discarded. 

The chamber house is subdivided into many compart- 
ments and the u'as as it passes through meets many 
obstacles in the shape of concrete partitions, baffles, 
and wires. Wires, as has come to be the common prac- 
tice in the United States, will be used in these chambers 
for the separation of the dust from the furnace gas. 
The main building as shown in the diagram is 220 ft. 
lonar by 100 ft. wide. The chambers are connected with 
four stacks, three of which will be in constant use, the 
fourth being held in reserve. As the sas emerges from 




H 



MINING AND SCIENTIFIC PRESS 



July 4. 1914 



the chamber r i il passes through Hues to the stacks, 

which flues cud in dome shaped structures as Been ill 

the diagram, which have numerous openings causing 
the gas to be disseminated and mixed with the air In- 
jure passing to the open. The stacks are connected 
with fans as shown ill the cross-section, which fan blows 
air into the stack around the openings from the Hue. 
where it mixes with the escaping gases, liesides adding 
air tu the gas before it passes mto the open, it of cuius. 

reduces the pressure iii the chambers and forces the 
draft. The velocity of flu- gas through the chambers will 
be about three feel per second. Dampers are placed in 
the flues fur the regulation of the How of gas through 
the chambers. The chambers and stack are supported 
on concrete piles. 

Elnmraimaftainig ftftse Mosqpito 

Kffective methods of getting rid of squitoes can 

never In- too generally known, ami the following ac- 
count by Lloyd Noland, superintendent of the health 
department of the Tennessee Coal, Iron & Railroad Co., 
Birmingham, Alabama, of the methods used by that 
Company, as reported in the Bulletin of the American 
Iron and steel Institute, will be of interest. 

A careful inspection «( all streams, ponds, pools, 

and Springs, both within and for a distance of one mile 

around each camp, was made early in the spring. 
Anopheles larva; were found in practically all places 

of this character. Cltlex larva- of several types were 

found in rain barrels, tin cans, fire barrels, septic tanks. 
collections of dirty water around houses, and even in 

mines at sunn- points, 

Tin- work accomplished consists in draining ami lin- 
ing all pools and swamps, where practical- the weekly 

spraying with crude petroleum or larvacide of such 

pools or swamps as C! t he Idled Or drained; the 

clearing of vegetation in swampy spots; the mainte- 
nance of drainage ditches; and the installation of au- 
tomatic oil drips at the head of sluggish streams. All 
rain-barrels are destroyed or removed; tin cans and 

bottles are carefully removed from all parts of the 

camp; and larvacide. manufactured by the Company, is 
added to water in fire barrels. General screening of all 
houses, while ideal as a protection, is too expensive to be 
considered. Screening has been resorted to only as a 
protection against mosquito infection in houses where 
there are actually cases of malaria. 

Filling and draining of swamps and pools is by far 
the most logical and economical method of destroying 
these breeding places. The first cost of such work may 
be a considerable item, but this is more than balanced 
when the yearly cost of oiling is considered. Oiling 
has been accomplished by the use of drip barrels or 
larvacide. The Hrst. a rinsed barrel, containing 10 to 
15 gal. of ordinary crude petroleum, is equipped with 
an ordinary %-in. gate valve and mounted mi a small 
platform at the head of such sluggish streams as are 
fnund to contain larva-. The valve is cracked suffi- 



ciently to allow a regular drip, rapid enough to give 
a light film on all water running through the ditch. 
A surprisingly small amount of oil is required for 

this purpose*. It is ni ssary with such streams to 

straighten the hanks to remove obstruct inns such as 
trash, grass, etc., thai may hold haek I he descending 

film. Very little work is required to keep these drip 
barrels in proration, i weekly inspection and refilling 
being about all that is necessary. 

In the second method, isolated pools are sprayed witli 
oil or larvacide, as the case may be. Then- are many 
sprays on the market of the knapsack type that answer 
excellently for this purpose. Pools of large size thai 

are exposed to the action of the wind and that contain 

much vegetation arc difficult ta handle because of the 
fad that the oil film is frequently blown entirely away 

from a large part of the pool. In order to handle 

situations of this kind properly, a larvacide developed 

at Panama is used. This larvacide we manufacture in 
III- following way; One hundred and fifty gallons of 
crude earbolic acid is heated in an iron tank having 
a steam coil at 50 lb. pressure. Two hundred pounds 
of finely crushed and sifted common rosin is dissolved 
in the heated acid, and 30 lb. of caustic soda dissolved 
in li gal. of water is added. A mechanical stirring rod 
attached to the tank is used constantly during the proc- 
ess. The product is prepared in a very few minutes, 

yielding about three and one-half barrels of larvacide 

il nst being approximately 10c per gallon. 

A dilution of larvacide of one to ten thousand is 
amply sufficient to kill all larva- in pools; a certain 

a ml n( care, however, has to be exercised, as this 

material is somewhat poisonous to stock and will 

quickly kill fish. Inspectors are required to have suffi- 
cient knowledge of mosquito larvae and of adult mos- 
quitoes to differentiate types. Careful inspection is 
insisted upon, and complaints of householders of the 
presence of squitoes is investigated. The work al- 
ready dune has shown surprisingly good results, the 
number of cases of malaria being enormously reduced 
and the comfort of the people greatly increased. 

The following accounts of actual results attained, re- 
ported in the Btilli tin, are encouraging. \V. (!. Kran/. 
manager for tin- National Malleable Castings Co., Sha- 

i-nn. Pennsylvania, reports that the greater portion of 
tin- Shenango valley at one time was swampy and ma- 
laria was very prevalent ; but in recent years, as a 
result of the industrial development, the lowlands have 
been tilled in and malaria has disappeared almost en- 
tirely. "Walter Wood, managing director of R. D. Wood 
& Co., Philadelphia. Pennsylvania, states that in the 
ordinary development of the land around that plant 
they have nalurally and properly made a point of rill- 
ing in all low spots. This has been so efficacious that 

the report comes from the Camden Works that "our 

wharf watchmen and various boat captains at the wharf 
state that they are not bothered at all" by mosquito, -s. 

Many other successes of this nature have been reported 

from other parts of the country. 



Jab 4, 1914 



MIMV. WD 8 II Mil l< I'KI SS 



AMfitoraiH&im Jam tmd the Malay Timi Iiradhuisfary 



Tin receul arrival in San h ■ ■ II. mv Jones, 

a well kiH'wn jam manufacturer ami mining man from 
Tasmania, brings to mind tin relnl s of fniil can- 
Ding to tin mining. The following notea, prepared 
in«<-i 1\ from ■' recent i-mi' graph, 

Sydney, New South Wales show h<>» eloae the relation 

i- In the November and l» mber issues ■ 

• I,-, were published <>n bow exper- 
ience in ilir banana trade of Fiji qualifiea anybody for 
the manage nl of a copper company. Tl litor of 

I lit M iiiiii. i Magotin ill, I in, i „■. any illation, al 

though a correspondent though! be could. In the ease 
of jam and tin brilliant results in tin mining have fol 
lowed tin- incursion of jam manufacturers into the 

Malax Si 

The world's production of tin in 1913 was 119, 

ton i; inns. ni which 62,500 tons was from the Malay 
Peninsula, 24,850 tons from Bolivia. 17. nun ions from 
Banes and Billiton I Dutch Bast Indies), 5800 tons from 
Cornwall, 3200 inns each from Australia ami South 
Africa, anil 2450 tons from China. This is recovered 

mostb t'i i placers in the Orient, from lodes in Bolivia. 

Cornwall, and South Africa, and by lode mining, and by 
hydranliching, and dredging in Australia. Although 
tin production in the United States is negligible, yet 
this country consumed 45,551 tons of the metal in 1913. 
equal to about 38^! of the world's output. This is used 
mostly in the manufacture of so-called tin plate, which 
consists of from 2 to _.•">'. till, the remainder being 
sheet Btcel, and is used for making cans for jams, pre- 
serves, fruit, salmon, anil other loo. Is. The average 

pri f till in New York in 1 i'1 ;{ was 44.32c. per | id. 

Tin-: I X. L. Syndicate 

Nearly ten years ago E. T. Miles went to tin- Feder- 
ated Malay States with a Commission to sell Australian 

jam. fruit, timber, and even old steamships, when buy- 
ers wen- offering. He had a little tin-mining ex- 

perie ■ in Tasmania, and the Chinese who owned the 

Kastern Shipping Co. an- said to have attracted his at- 
tention to the tin deposits of Tongkah harbor, Con- 
\ii d of the suitability of the locality for bucket- 
dredging, and satisfied of the profitable character of 

the ground, he returned to Tasmania with the idea 

of forming a tin-dredging company among local capi- 
talists. Messrs. Jones and I'ca •!;. two well known 

Tasmanian jam manufacturers, heard the returned 
traveler's talc, ami were convinced. The high price of 
tin was the very bugbear of t heir existence as jam 
manufacturers, and they willingly found support for 
what came to he known as the I.X.I,. Syndicate, taking 
the trade-name of the Jones jam factory products. The 
jam people are said to have actually found all the 

original capital. In Novemher, 1906, the Tongkah Har- 
bor Tin Dredging Co.. X. L.", was registered in Tas- 
mania, with headquarters at Hobart. Its location is 



stdl jealously guarded (Kerr bj Ihe island capital iot<i 

who thus dare. I t,, pi -, r what has become, or is rap 

idlj l imi at industry. Th. Tongkah liarboi 

i- now a ipany of £150,000 capital, in a ihan 

fully paid A first dividend of is was paid in August 
' 'I imountinR '•• >s in I'M I. four ■■- 

1912, and quarterlj dividends of _'s ever sin.-.-. Six 

dredges are at work, ami another under construction. 



IOWI.R 

HI /CM* ' J,^^. 



\ 



i AMitnm* 



UoJbo* 

a xrnoofl T.o Or n»g -ng tM 
., a ai'jtrut,fkM>>rir,nOrV09^g m. 



ouLr or tiAK 






r 



7 






SIAM 

, - J • Twiph*l,HBrt»ur T,n Dp ^ . 




THE .MALAY PENINSULA. 

All were paid for out of profits. The latter amounted to 
£78,304 in 1012. and to E80,024 in l!H:f. But another 
way. the Company has returned its shareholders 28s. 
per share to date, or £217,500; and the market value of 
tin- shares is still today about 41s. (id. ca.-li. 

Melbourne jam men, including A. W. Palfreyman". 

could not afford to let their Hobart rivals scoop up all 
the tin. With a certain amount of assistance from 
Sydney capitalists, they formed' Tongkah Compound, 
X.B.. registering the Company in Victoria in 1910. Tin- 



16 



MINING AND SCIENTIFIC PRESS 



July 4, 1(114 



capital authorized, and issued, is £§0,000, in £1 fully 
paid 8b ares. The first dividend was paid in June, 1912, 
and regular distributions have followed since. The 
twenty-fourth was paid in .May. Shareholders have re- 
ceived 49s. per share, nr £122,500 in profits; and the 
Company's shares are still worth litis., or well over three 
times their par value, upon the open market. 

Small wonder that Sydney mining men declined to 
leave the exploitation of tins wonderful profit-produc- 
ing Malaya tin country to their Flobart and Melbourne 
friends. And it was only in accord with the earlier 
chapters that II. E. Pratten, a representative Sydney 

.j.im man. should pioneer Sydney operations. Mr. Prat- 
ten was one of the lucky original shareholders in the 
Tongkah Compound, and. realizing the potentialities of 
Malaya in the direction of bucket -dredging for tin. lie 
stayed there a few weeks en route to England, in 1911. 
becoming interested, he returned there again in 1912, 
having, prior to his departure from Sydney, formed the 
Austral Malay Tin. Limited, with a nominal capital of 
£50,000, £20,000 of which has been called up, and the 
£] shares in which are today quoted at 00s. The result 
»f that English trip was the successful flotation of the 
Kamunting Tin Dredging, Limited (London), with a 
paid-up capital of £130.000: Kampong Kamunting Tin 
Dredging, Limited (Sydney), capital paid up £130,000: 
Narut Tin Dredging. Limited (Sydney), capital paid 
up £50,000. Mr. Patten is president of the New Smith 

Wales Chamber of Manufactures. 

Dredging at Gnow 

But meantime events had been moving on the Malay 
Peninsula. Away up north in Siain. at a place called 
Renong, the English administrator of the Mines De- 
partment for "Western Siam had been approached by 
English capitalists with a view to obtaining suitable 
dredging ground. He took up an area at Gnow, l" 
miles south from Renong, where a dredge with 7-cu. ft. 
buckets started work for the Siamese Tin Dredging 
Syndicate about 1900. That dredge has won up to 60 
tons of black tin per month, and held the record for 
production until last year, when the Tongkah Com- 
pound started its big returns. The "Company is now 
erecting two dredges with 15-ft. buckets at a cost of 
£30,000 each. 

Following the example of the Siamese Tin Dredging 
Syndicate, another British company. Scotch people being 
largely interested, sent out a representative, who ac- 
quired other areas near Renong. They built their first 
dredge there in 1910. and while paying their share- 
holders 20% per annum they have also made sufficient 
money to buy two large dredges, which are in com- 
mission now. 

The Malayan Tin was the next English (London 
registered") bucket-dredging company of importance to 
start operations. It acquired ground which the natives 
had already worked in Kinta valley, near Ipoh, capital 
of the Federated Malay States. One dredge started 
in 10TJ. and a second was recently put into commission. 
The nature of the eountrv in Kinta vallei is entirely 



different from that of the more northerly areas. It is 
limestone country, and it remains to be seen whether 
bueket-dredging can be carried out successfully on the 
uneven botto meommon to such formations. So far, the 
first dredge operated by the Company is doing fairly 
well. 

DhKdging in Sum 

Australian associations were not nearly finished with 
the establishment of the Tongkah and Austral-Malay 
mining groups. Mr. Miles retired from his Tongkah 
associations, and struck out north in Siam during 
1912. He had no difficulty in securing backers upon 
that occasion, and, selecting concessions to the north 
of Renong, established the Decbook Dredging, Ltd., and 
Katoo Deebook companies. They each have a capital 
of £100,000 in £1 shares. The Deebook has issued 52,- 
000 fully paid shares, ami 38,000, now paid to 19s., 
holding 10,000 in reserve. The Katoo Deebook has is- 
sued 43,000 fully paid and 42.000 paid to 13s. The 
directors are worth noting as showing how the native 
element is alive to the importance of the new mining 
development in its midst. The directors are: E. T. 
Miles. A. W. I'alfreyman. Khan Joo Chie (Penang), A. 
Temple Miles, and Khan Joo Tok (Penang). Khan is 
practically the native equivalent of mister or gentle- 
man, and -Too indicates a member of the native ruling 
family. 

Among the last, but by no means least, of the Austral- 
ian-controlled companies stands the Malaya Tin Cor- 
poration. Like its Sydney forerunner, Austral-Malay 
Tin. Ltd.. it was organized to promote the flotation of 
sub-Concerns, rather than the working of mining areas. 
Originally the Malay Peninsula Syndicate was formed 
early in 1013 at the instigation of a visitor from Siam, 
who offered to introduce suitably any representative 
man who went back with him. with a view to obtaining 
desirable concessions. Ultimately, T. II. Martyn. a prom- 
inent member of the Sydney Stock Exchange, whose 
active association with Australian dredging companies 
is well and widely known, was induced to undertake 
the expedition. He personally visited Siam and Burma, 
and seemed valuable interests in both countries. Some 
of these areas have been prospected with success. 
while one in particular, situated in the Renong valley, 
II) miles south of the Siamese Tin Syndicate leases, is 
said to have been proved to carry over 2 lb. of tin per 
cubic yard. According to official reports, about 150 
acres of that lease, known as the Basin property, have 
already been developed, and operations are being 
continued on an extensive scale with boring plants over 
the rest of the area. The Ratrnt organization is a 
matter of the present time : but it is not a matter of flo- 
tation, at least, in the ordinary sense of the word. Hold- 
ers of shares in the Malay Tin Corporation are entitled 
fo a preferential allotment of shares in the new Com- 
pany, five for one, pro rain to their present holding. 
The £5 shares of the Corporation, it has a nominal capi- 
tal of £42,000 in S400 fully paid shares of £."i each, were 
quoted on April 28 at £12. 



.Mil* I 1!'U 



MIMV. \M) » II Mil It I'KI » 



17 



other Australian In Ualaj i 

worth) of more of Ira attention, include n Bydnrv 
venture known ,iv the Kulim-Malayan Tin Bynd 
□0,000 in 1000 ihara of C10 each, and » Melbourne 
company known »- the Trong Tin Mining Co The 
former is situated in the Malaj -int.- of Kodah, while 
tlit- latter boldi property about 25 ntflea aontfa of the 
I. iii-iit Dear the town of Bruai The Trong baa ■ 
capital of £80,000 in £1 share*, of which 30,000 were 
issued fully paid to the vendors, and 90,000 to sub- 
scribers »' "•-. paid, leaving 20,000 in reserve. 

Hut. as ; I'rlfijrii/ih says, all is ool gold thai 
glitters. Mans Australian syndicates have sent repre 
tentative* to Malaya, ami in not a few instances the 
results so far have ool been satisfactory for sharehold- 
ers. There are, for instance, sneh Victoria ncerna as 

Rnngei Raja, Salak South. North Tambnn, and the 
Hindu Chong mines. And there are others, no1 marly 
all Victorian. The 'wild-cat' is always present when 

mining bh sses have been achieved. It is for prudenl 

investors to weigh every statement made, and, above 
all. relj rather upon 1 1 1 « - reputation of the promoters 
than the statements made by mining nonentities. 

New Dri 

A contract for the construction and erection of two 
large bucket dredges, at a total cost of £40.11110. for 
equipping tin- property of the Kampong Kauranting 
Tin Dredging Co., mentioned above, has been placi d in 
Melbourne. The specifications and design are the work 
of J. S. Henry, and the dredges contracted for will, it 

is officially Btated, l asily the largest ever built in 

Australia. The material ami workmanship will be as 
far as possible Australian. The latest improvements 

found i essary as a result of tin-dredging experience 

in Malaya, including tin- most recent type of revolving 
sereen, will be fitted in these dredges, barge tin-saving 
tables are another feature, the pontoon being specially 
large, namely, 130 by 44 ft. by 8'i ft. deep to carry 
them. The boats will be fitted with close-connected 
6-cu. ft. buckets, which will have a theoretical capacity 
of 35.000 yd. per week for each dredge, and effective 
capacity of 20.000 to 25,000 yd. of tin-bearing material 
per week. The plant specified is designed to dredge 
4."> ft. below water-level. The main engine is of 120 
hp., and the pump installed for sluicing has a delivery 
of fiOOO gal. of water per minute. The cost of the two 
dredges erected and in good working order at the 
property, together with the spares, tools, tin dressing 

sheds, and buildings, will exceed £40.000. The total 

weight of the dredges, with machinery, will be over 625 
tons, which is considerably over 100 tons heavier than 
the largest dredge yet sent from Australia to the Orient. 
The contract time for delivery for the first dredge is 
eight months, and for the second eleven months from 
the date of signing the contract. 

All tin recovered in the Malay States is smelted at 
Penang and Singapore. An export duty of 12.5^ is 
levied on the tin leaving the country, and in 1012 the 



mho Hi ui Itiah ."Hi 

amounting to : "" |H| o 

Prom the above notes it must not he inferred th«' 
mil paying attention to their own tin 
properties, as is shown bj the work in iluicin 
Kiiv.iv ii iii I lode mining at the Anchor, Pioneer, Ml 
KiseiiotT. ami others in Tasmania, lode mining in 
Queensland, dredging in New South Wales, and lodi 
mining in Weatern Australia. 

Mining in (the Argentine 

Mining has made hut little progress in Argentina 

Whil ipper. lead, silver, gold, wolfn re-, and bora> 

salts, as well as small quantities of other minerals, are 
scattered over the Provinces of Mendoza, Sau Juan, La 
Ifioja, i atamarca, Salta, Jujuy, Tucui Cordoba, and 

'San Luis in the northern consular district, great dis 

lance from the coast and difficulty and expense of trans 

porting supplies and ore make mining in mosl in 

stances unprofitable. A irding to official informal ion 

obtained from the Bureau of Mines at Buenos Aires, 
there are thn >pper, one borax, one wolfram, one 

silver, one onyx, one lime and cement, and a petroleum 

company now operating in this district. Two of the cop 
per mining companies, the Famatina Development Cor 

porn t ion, Ltd., provint f La Rioja, and the Corapaniii 

Miners Nueva Concordia, Territory of Los Andes, failed 

recently. Fi i reliable private information it ap] 

thai the only mining venture conducted on any eon- 
si, lend. I, • scale at present in this district is the Hansii. 
Sociedad de Minas, which works valuable wolfram de- 
posits in the Province of San Luis. According to 
official Statistics supplied by the Bureau of Mines, tile 

following quantities, in metric tons, of ore were ex- 
port! d in 1913 : onyx. 281 ; gypsum. 174 ; mica, >> ; borate 

of lime, 058: wolfram. 5:{6 : copper. :!10: and lead. T 

tons. These figures may be taken as indicative of pro- 
duction, as there is no ore reduction in the country. 
Practically all of the ore exported is mined in Hie north- 
ern consular district. The Sierra de Cordoba possesses 
rich stone deposits, the more valuable because of the 

small quantity in many parts of tl ountry in building 

materials. According to official statistics, 11 different 
companies are now exploiting quarries, principally 
granite and limestone, in the province of Cordoba, in 
addition to other smaller concerns. — Daily Consular 
Hi port. 

Indian Coal ©uaftpnaft 

The chief inspector of mines in India reports the 
output of coal in British India during 1913 as 15.486.- 
318 tons from the following districts: Bengal. 4,649,852; 
Bebar and Orissa, 10,226,389; Punjab. 51,040; Assam. 
270,364; Baluchistan, 52,932; Central Provinces, 235,- 
653 : and Northwest Provinces, 90 tons. In addition. 
600,000 tons was imported. Exports were 3,000,000 
tons, leaving about 13.000.000 tons consumed in India, 
of which the railways took 4.500,000 tons.' 



18 



MINING AND SCIENTIFIC PRESS 



Julv +. 1914 



A MkMgaim Stoplimg Mefclnodl 

In the accompanying diagram, Pig. 1, is shown a 
peculiar condition which occurred in a Michigan mini'. 
The deposit was being worked from the lower levels 
up, as it was discovered by a raise from lower work- 
ings, the orebody was irregnlay, but for the must part 
ua^ 12 It. wide and hail a dip of 4."i . With so shallow 

a dip, the stuping could be easily accomplished from 
one level to that above, by merely standing on the foot- 
wall, as is customary in mines of low dip. The slices 
for atoping were mined in several different ways, ac- 
cording to the nature ot' the ore. The raises wen' 
driven straight up the dip of the deposit, as shown in 
the lower portion of Pig. 1. But higher up in the ore- 



ont by raises is convenient for the loading of tram 
cars on the level below, as ore-chutes ran be con« 
structed at the bottom of the raises. In the method 
shown in Fig. _. wheelbarrows are used in the stopes 
for getting ore to the raises, although some of the ore 
falls directly into the raises, when blasted. Sub-levels 
and raises are popular in many of the mining methods 
in the Michigan iron mines for soft and dium ore. 



With a production in 1913 exceeding for the first 
tiine in its hist,,i> a total of 70,000,000 tons. West 

Virginia became firmly established as the sit I in 

rank among the coal-producing states. A< rding to 







= 










Pic. 1. 




bod} the dip became nearly vertical, so that a miner 
COllld not stand on the loot-wall to set up his drill. 
It would have been possible to let a large quantity of 
broken ore accumulate in order to stand on while work- 
ing, as is done in hack stoping, dry-wall methods, etc., 
but the manager did not want to tii' up money by keep- 
ing, as is dour iu back stoping. dry-wall methods, etc., 

to make it possible to stand on the foot-wall, the raises 

weir no longer put in along the dip. but diagonally, 
as shown in the upper part of Kg. 1. It is evident that 
an} angle of raise desired can be obtained by driving 
foot-wall raisrs across the dip of tin- deposit instead 
of at right angles with the drift. Secondary vertical 
raises were also used, when desired for ore-chutes, but 
the men stayed in tin- inclined raises. This brings 
nut tli,- point that raisi-s. in stoping methods, are used 
for two purposes, for men and timber and as ore-chutes. 
Thus in tlir illustration the men stay in tin- diagonal 
raises and hlast ore down either tin- diagonal or the 
right-angled raisrs. In gome mining methods tin- raises 
for men and timber are kept in good condition and arc 
cribbed and no ore is dumped through them, except 
when driving them and in cross-cutting over to an ore- 
chute raise at their completion. 

In Pig. J a system of raises is shown which illustrates 
soiiu- of tin- variations used in an iron mine at Wirau- 
nee, Michigan. With one-man stoper drills in soft or 
medium ore, raising is not expensive, and getting ore 



Edward W. Parker, of tin- I'. s. Geological Survey, 
the production in 1913 was 71,308,982 tons, showing 
a gain of 4,522,295 short tons, or nearly l'/ c over the 
output of 1912. up to that time the record tonnage. 
The increased production was accompanied by a con- 
siderably larger gain in value, which showed an in- 
crease over 1912 of $9,079,931, or 14.46%. The value 
id' the output in 1913 was $71,872,165. The average 
value for the first time iu ten years exceeded .+1 per 
ton. The production increased in 1913 in spite of the 
facts that the labor troubles in the Paint Creek and 
Cabin Creek districts of the Kanawha field, which 
began in the early part of 1912. were not settled until 
well into the spring of 191:-!. and that the unprece- 
dented fi Is in the Ohio valley in the spring reduced 

shipments to the west for a considerable time. A 

few of the mines that were closed by the strike were 
not reopened during 1913, and the total production 
from the two districts affected was much below the 

normal output. The increased production was well 
distributed over the state, there being but three coun- 
ties out of thirty where decreases were shown. 

According to the Bureau of Mines, the number of 
fatal accidents in the coal mines of West Virginia 
showed a decrease of 22. from 359 in 1912 to 337 in 
1913. although there was an increase of nearly 10% 
in the number of men employed. Labor troubles 
caused the h ss of 377,405 working days. 



t I'M I 



MIMV. WD m II \ I || U |-K| ss 



19 




I (*. siimm. * s.iiviuii Puau art led to in,- thlt department u>< the Htctuiton of technical 

•ad •<!'• "inr; i., Bunmy (in./ MetaUnrpy. ;/ir Kdltor welcomet the CTpreuton .if 1 1... « OMrrary 

f.j Au i.h n. krlirvlug tkol careful nitlcim i< mo"- i.i/miM,- ik« omimI <mui'i ni. FnterMoN .if any oonlrttn- 

termtned >■</ lit probaklt htferetl to c • ma/, 



Simplification of Gold Or; Treatment 

The Editor: 

Probably the moat refractory 'versus' in eon- 
trovenrial metallurgy is 'crushing in water ami amal- 
gamating v. crushing in solution without amalgamation.' 
In id. Hay 10 \ \V. Allen cites data to prove 

that crushing in solution without amalgamation in- 
volves excessive precipitation with consequenl Fouling 
of solution. Il<- instances the Dome and Hollinger mills, 
and probablv nu better opportunity baa ever been af- 
forded for comparison. As Mr. Allen points out. these 
mills are working aide l>y side on ore differing essen- 
tially only in grade, the Dome crushing in water and 
amalgamating, while the Bollinger is crushing in solu- 
tion without amalgamation. Both have been dropping 
raps .hi sbout the same tonnage, and both started 
• In t-iiii» the Bummer of 1912. Mr. Allen's comparative 
table refers to approximate data of mill operations < » I » - 
tained in Augual 1912 while both mills were in the 
tuning i ■ | > process, and hence should nol be considered. 
The i. -suits during the firs) pari of 1913 arc also affected 
by the fad that the companies were fighting a serious 
labor disturbance which entailed erratic work in the 
mills. Hence the only figures which are of any possible 
value for comparisons are those from the working of 
the mills during the latter part of 1913 and during the 
present year. Accurate figures from Hollinger opera- 
tions for 1913 and 1914 to date are given in the fol- 
lowing table, and also those approximating closely the 
Dome present practice, as well as Mr. .Mini's tabula- 
tion : 

HolliiiKer Mill: 
( Exact figures from 
records. ) 
Treatment. 1913. ltiUtodate. 

Solution precipitated per ton of ore... 3.16 2.67 

Zinc consumption per ton of ore 0.66 0.59 

(yanidc consumption per ion of ore... 0.46 0.46 

Cyanide added Tube-mill reed. 

Total recovery 96.10 96.00 

It will be noticed that Mr. Allen's figures are suffi- 
ciently incorrect to prove his point, but that by apply- 
ing his own line of reasoning to the actual figures, the 
exact reverse is proved, namely, that in tliis instance 
crushing in solution without amalgamation is superior 
in crushing in water and amalgamating. 

A point of which Mr. Allen seems to lose sight is that 
tons of solution precipitated per ton of Ore ( precipita- 
tion ratio' i is a factor of the grade of ore. f quote 



i'i- Mr. Allen (referring to the Bapcranxa) : "and the 

amount of solution pi ipitated is only ■ '. ions per ton 

of ore a- .'gainst iui r three limes that amount in 

cas.s where ordinary Htamp-uiilliug is practised." Now 
at the Holliuger 2.1 to l is being precipitated, against 
1 7 to I at the Dome, while the grade of tin- Hollinger 

ore milled is about tin times that of the Dome. As 

suming that we were amalgamating at the Hollinger and 
that we could make the same extraction by amalgams 
tion that the Dome makes, our cyanide 'heads' would 

still he three times those of the Dome, and a precipita- 
tion ratio of .", to l i :i tim.-s 1.7: would be justifiable. 
In other words, we would be precipitating about twice 

what we do now. Again assuming that the D ore 

was crushed in solution and not amalgamated, the 

cyanide 'heads' would lie one-third of ours, so that the 

precipitation ratio should be one-third that of the I l<»l- 
linger or 0.9 to I. Thus the Dome is precipitating 

twice what would be n ssary were they crushing in 

solution ami not amalgamating. 

At first sight it would look as if Mr. Allen's point is 
well taken, and that if the gold going into solution can 

In- reduced, the precipitation ratio can he reduced pro. 
poi-i innately, hut actually the reverse is the case. On 

; ount of crushing in water, an excess of solution is 

made and a Corresponding amount must he precipitated 
and thrown away. This precipitation of 'waste' solu- 
tion added to the high-grade solution precipitation, 
makes the precipitation ratio greater than it would he 

Were cyanide solution instead of water used in Crush- 
ing — at the Dome twice as great. Discarding any solu- 
tion from the mill other than with the tailing is poor 



Dome Mill: 

(Approximate 

present 

practice, i 

1.70 

0.34 

ii. T-". 

Before agitation. 

95.00 



, As Cited by .Mr. Allen: , 

Hollinger. Mom.-. 

4.0 2.00 

0.8 0.25 

0.80 

Before precipitation. Before agitation. 

93.0 95.00 



practice if it can he avoided. One never knows whether 
a careless operator on night shift is not habitually 
opening the wrong valve and allowing good solution to 
gel away; especially with zinc-dust a sudden loss of 
precipitation may run up the grade of the 'waste' solu- 
tion ; the cyanide loss is greatly increased and it may be 
necessary at any time to have to charge up a herd of 
sheep or a dozen cows to operation. The only point 
which Mr. Allen can make in favor of 'waste' solution 



20 



MINING AND SCIENTIFIC PRESS 



.lulv 4. 1!>14 



is that fooling is reduced, and I must say that to pre- 
cipitate and throw away solution is a crude method of 
avoiding this difficulty. There is always a less of solu- 
tion in the tailing, so that new solution is being made all 
the time sufficient to offset fouling with careful opera- 
tion on normally clean ore. I say most emphatically that 
tin- slogan of a good mill superintendent should be 'Not 
a pound of water into the mill without getting a wash 
with it. and not a pound of solution out of the mill 
except with the tailing.' If a recovery of about > s|1 '. 

is possible by crashing and amalgamating in water, as 
at the Homeatake, I admit that this principle does not 
apply; hut with only 60% as at the Dome, it does apply, 
ami I should say that with about *'>.•/,. which Mr. 
Allen's figures show to be the Hand recovery by amal- 
gamation, 1 would even risk a charge of heresy in hint- 
ing that it is mighty close. 

Noel < Vxni.voium. 
Timmins, Ontario. June 14. 

That it is extremely difficult to draw parallels be- 
tween the practice at any two mills, it goes without 
saying. The innumerable factors which enter into the 
making of an economic ore treatment differ so widely 
at different properties, even in the same locality, that 
to state thai the practice at one mill should be recog- 
nized as standard ami another as deficient is mislead- 
ing, even though results would Beem to warrant such 

a statement. The discussion on 'Simplification of Ore 
Treatment' has been a most interesting one, in that 
the snhjeet is one toward which all metallurgists are 
making efforts, but we believe that only a very gen- 
eral simplification is possible of attainment in metal- 
lurgical practice. Those details and refinements which 
go to make up individual efficiency will contin 
depend entirely upon local conditions which cannot be 
changed. The questions, however, which have been 
raised in this discussion have been timely, ami we trust 
may lead t<> a better understanding of the subject. — 
Editor.] 

Platinwuunni Assay 

The Editor: 

sir -Before rational steps .-an be taken to conserve 

our- platinum resources and to recover that metal from 
the usual run of commercial ores, it is essential to 
develop simple and accurate methods for the deter- 
mination of the metal that may be successfully applied 
by general commercial assayers with the limited equip- 
ment usually at hand. I would, therefore, direct at- 
tention to certain difficulties in the three methods 
published by you in tabular form on page S14 of tie- 
May lb issue. 

The first method requires the use of a reagent. 
IPO., which is not ordinarily carried by assay offices. 
I may also add that perhaps the limits of accuracy of 
this separation when considerable relative quantities 
of An are to be separated from small amounts of Pt 
have not yet been sufficiently worked out. In the sec- 
ond method there are two points where great care 



and attention to details are required to secure any- 
thing like a clean separation. To dissolve the Ay in 
HNO, and to leave the Pt undissolved requires ex- 
tremely close work, which cannot ordinarily be given 
in a commercial assay office, while it is practically 
impossible so carefully to adjust the strength of acid 
and temperature as completely to dissolve the An in 
aqua-regia pnd leave the Pt unattacked. As to the 
third method, some tests made in the New York assay 
office have shown that Cd does not always prevent the 
solution of some of the Pt in assay buttons and this 
separation cannot be relied on. 

Pbbderic P. Dbwey. 
Washington, D. C, May 26. 



The Editor: 

Sir — K. A. I-'. Penrose's valuable paper on 'Certain 
Phases of Superficial Diffusion of Ore Deposits' in the 
January number of the current volume of Econ 
Geology, recalls a matter in which I have been inter- 
ested lor some years. The secondary enrichment of 
orebodies by the downward migration of salts of the 

metals formed in the ;nvsm is only one phase of a lo-u- 
eial process. Prom the miner's point of view it is per- 
haps the must important phase; hut. as .Mr. Penrose 

points out. the emphasis which has been placed up.ui 
i' tin- practical reasons should imt blind us to the more 
genera] aspect of the process. The diffusion of ..re. 
I.'.ilies throughout a larger volume of rock than that in 
which they were formerly contained is doubtless of 

nmiin occurrence. In 1010 I called attention to. the 

diffusion of ores at a meeting of the San Francis.'.. 

section of the Mining ami .Metallurgical Society of 

America.' The summary report of my remarks is as 
follows : 

"1. The oi'e at Ely is a secondary deposition due to 
downward leaching from pre-existing orebodies at 
higher levels, now removed by erosion. These vanished 

orebodies may have been more ntrated as regards 

copper content than the present ..res. which may In- 
due to a process of diffusion ratlu-r than concentration. 

"2. The mode of occurrence of the massive ore- 
bodies in the rhyolite of Shasta county indicates how 
such a derivation of the Ely ores could come about. 

"3. These Shasta ores are chiefly massive bodi 
pyrite with admixtures of chalcopyrite. If thes 
.rosion and favorable relation to tin- groundwater, 
should have come into the zone of active oxidation, the 
copper might well have been carried to lower levels and 
diffused as chalcocite and pyrite through tin- rhyolite, 
and the resulting Rossini might subsequently have been 
removed, leaving a disseminated porphyry ore of the 
Ely type and no trace of the massive ore of the Shasta 
type." 

At the Toronto meeting of the International Geo- 
logical Congress, 1913. I again called attention, in the 
*M. & M. S. A.. Hull. No. :•:'.. May 1910, pp. 263, 264, 



Jul* 4 I'M 



MIMV. \\I) m II M II I. F'Rl» 



ding » Uli rpit-ationa in I 

tin- in.,! ..i I.....-II ,n appropriate nmue 1 1 • • - 

■Ouch both leeoudnr) enrichment 
mm, I diffusion in but particular phase*. Another phaae 
el ili, proeaaa it thai which ia concerned with the pri 
concentration of orea from the minute!) diaaemi 
h«i«hI |>articlea in both sedimentary and igneous rocka, 

irdai with the view held, for example, bj many 

geologiata as >•■ tl rigiu of the i lead deposit* of 

the HJaaavippi Valley, I am aatiafied thai man] of 
ili- ahallow, rich ore deposits of Nevada are dne t" a 
|ir,»-,ss of concentration from decomposing igneous 
r.M-ks The rooks from which these orea are abstracted 
may, in ■ ■.•■n-.,-. be regarded ns the gossan of an ex 
tremety lean ore from which the salts of the metals are 
earned down by permeating waters to be deposited in 
favorable situations, determined bj fractures, gouges, 
etc. The proceaa is identical with that usually de- 

aeribed aa •>< ndary enrichment and yel this term can 

not be applied i,> it, since it results in primary ooncen 

inition. This phase of the pr as realises some of the 

ideas involved in tl Id theories of ore deposition 

frimi descending waters and by lateral secretion, but it 
differs from both. The important matter, as it seems to 
me, is that we should regard secondary enrichment, 

diffusion, and certain primary coi Titrations of ore, aa 

phases of ;i general pr ss the importance of which has 

ii, if yet been fully r gnized in >■ >mic geology. 

Andrew < '. I. iwson. 
Berkeley. California, June 23 



jit me 

The Editor: 

sir — Regarding Hie question of the 'Revision of the 
Mining Law,' I think ii would be well for the mining 
world tn firs! analyze our present mining l;nvs thor- 
oughly and find onl why they are inefficient. The pres- 
enl claim of 600 bj 1500 ft is just us good as a claim 
would be if it was 660 by 1320. I think a claim fol- 
lowing the dip of the vein is better than one with per- 
pendicular Kin's in so far as it has a tendency to kt-<-] > 

n miner from locating nnni ssary surface land with 

n itcrops. Mm in revising a law that would make 

vertical lines, let it apply only to Buch Lands as are 
known to have mineral or a possibility of mineral with 
i utcrop and then lei the claim I"' 1500 by 1500. 

[f one looks into the present mining laws, there is 
nothing much to condemn, excepting that there should 
be some regulation regarding assessment work, 
and the mineral lands should lie classified; that is, gold 
and silver. A claim under the present law should 
cover all that a prospector could ask for. If he can- 
not do an honest $100 worth of work per year upon 
such claims, he should forfeit them. 

On copper and baser metals, when a prospector holds 
from 6 to 12 or more claims as a group. I think .$25 
per year of honest work performed should he sufficient. 
The mining law is plain and concise, but it has never 



upheld i" \ . , muni mi.. 

I >• must have mineral in plan i>. mual lie 

his claim i.. permanent mi uta ami ohjerta, ha 

Make Ins property \,,» what n ran *•■■■ 

Mill tile law is ii,, I ,aiii,, I i. ill, ami why id \\ • 

tin- (iovernment been -, alow in asserting 1 1 s right to 

the miueral upon nil gran) lands" Why has it allowed 

limber claimi to !„• located ining claims ami nun 

■•nil Ian. is. thus giving the miners' territory away 'I 'I • 

reservation of the Qoveri nt'a mineral right upon 

grant lands has never held. I know that the old canal 

(riant in the Lake Superior country had about the aa 

recognition that tin- railroad grants have had An in- 
dividual buying land always found that exception in 

the deed, bul mining -p,, rations s, how obtained 

the land and miueral. Is it this thai has caused the 
Government to be so slow abonl asserting its righl to 

the mineral on rail mail grants, ft i the fact thai there 

was hundreds of millions at stake in the Lake Superior 
en uni ry I 

line can forget the old canal grant, bin it is time 

for the mining public to gel together and not only 
i' ver the mineral upon all subsequent land entries, 

hut to demand that which is theirs, that is. the min- 
eral on grant lands and timber lands. Then frame 

laws that will not have a tendency t,> land monopoly. 
The law says hones! discoveries must !»■ made, but von 

cannot enforce these laws to the letter when the Gov- 
ernment has been a half century trying to find out 
if they have the mineral on grant lands, which they 

explicitly specified they did have: yet officials seem 

afraid to reclaim that which belongs to the public. 

I »,, not reserve anything more from the poor home- 
steader unless you take that which belongs to us from 
the grant lands. The farmer ami miner have both 
been imposed upon. They are willing to meet on an 
equal footing. There has never been any trouble be- 
tween them, and you will find if the miners will get 
together and demand the mineral belonging to them 
the old homesteader ami farmer will he right at our 
hacks making as much noise as any old prospector, 
miner, engineer, or mining professor. 

I oppose an annual tax of $10 per claim : after a 
man patents he might be able to pay tax. hut while 
he holds his claim under location. I believe in annual 
work — $1(1(1 per claim on precious metals and $25 per 
claim upon semi-precious metals. Let this he done upon 
the property. When patent is granted, it should he 

at $2.5(1 per acre and carry annual work of +25 per 
claim on precious-metal claims anil $12.50 per claim 
on 8emi-preci0US claims: or privilege to pay the amount 
to state or I Iovernment. On failure to pay or work 
for a period of three years, let the land go back to the 
state, to work, sell, or open for relocation. Each state 
should be divided into mining districts and each dis- 
trict have a recorder of all transactions in mining. 
Only claims on record should he valid. 

(', J. Pi:y. 
Iluttnn. California, January If). 



22 



MINING AND SCIENTIFIC PRESS 



July 4. 1!U4 



COMCEMTEATES 

Most of these are in reply to question* received by mail. Our readers are Invited /" ask questions and give 
ation ilealintj Witt the practice >>f mining, millinp, and smelting. 



Carbide lamps are rapidly displacing other types in 
Lake Superior iron mines. 



The .mass of the sun is 332,800 times the mass of the 

earth, the resj tive diameters Wing 865,000 and Tltls 

miles. A body weighing 100 lb. on the earth's surface, 
would he about 3000 lb. on the sun. 



An alloy composed of from 85 to 87% of aluminum. 
9 to 11', of sane, 2 to 4',, of lead, and 1 to 3% of a 

Strengthening element has been patented by Charles P. 

Van Gundy, of Catonsville, Maryland. 



TO FEED an average of SOU natives at the Lonely Reef 

mine in Rhodesia, in 1913. with bread, beans, mealies 
(corn), monkey nuts, rice, green vegetables, rations. 
salt. meat, sugar, eoeoa. kaffir corn, milk, and maizena. 
cost a total of $36,500, equal to about $46 per head per 
year. 



Electric power generated by mine power-plants of 
the St. John del Key Mining Co., Brazil, during the past 
financial year, averaged 3314 hp. per day. at a cost of 
3.2c. per -.'4 hours. The total output was 26,429,006 hp. 
hours. The mine used 60'<v of the power, and the mills 
and machine shops 36.81 per cent. 



A process for the separation of bismuth and copper, 
which consists in reducing the bismuth copper product, 
consisting chiefly of bismuth and copper, to a fine state, 
intimately mixing therewith a suitable compound con- 
taining combined sulphur, smelting said mixture to pro- 
vide crude bismuth and copper matte, and separating 
the copper matte from the said crude bismuth, has been 
patented by William Thum, of Hammond, Indiana. 



Tubing tor boilers consists of three classes, lap-weld 
charcoal iron, lap-weld steel, and seamless steel. For 
tubes to withstand corrosive action, lap-weld steel 
tubes are satisfactory, they being manufactured by a 
process known as roll-knobbling whereby the steel 
receives ■■> kneading action, making it uniformly dense. 
in being worked down from the bloom to the plate. 
By this process it is more resistant to corrosion. The 
well known 'National ' tube is made this way. 

Dust-fall in the neighborhood of cement plants has 
become a matter of considerable importance of late, as 
a result of litigation between certain cement companies 
and owners of land in the vicinity. According to J. 
1*. Mitchell, of Stanford University, tests made at dis- 
tances of from 1.2 to 2.8 miles from a plant showed the 



amount of cement dust falling varied from 0.4 to 10.4 
lb. per acre per day. ami field dust from 0.3 to 0.9 lb. 
per day. 

'PlCKlNii-ri' bottoms' is a phrase used in mining to 
describe the operation of removal of the last slice of ore 
in a stope, that is, the ore lying immediately under a 
level and forming the back of the overhand stope. The 



////, ./ft///-//////'//',, ,, /fif*, ,///////////'//////////////, 

. CAufe ■ 
\/f •/ntrrift. 
' y O'tam. \ 



i 




-77777777777777Tr7T 



■^.Bottom} /O'** I 

<S\- '- ' ■ .-. - 



>»///fj/»W///S»/ y r r /f 



one y 

Stope Bo/tom 
SKCTIOH OS MINK SHOWING METHOD OF PICKJAG-UP BOTTOMS. 

figure herewith illustrates a method of mining this ore 
adopted at Broken Hill and described by Andrew Fair- 
weather. Since the slice supports the bottoms of the 
level above, its removal necessitates picking them up; 
hi' • the phrase and its use in this connection. 



Many mine officials, foremen, or bosses who have 
spent years at a single mine do not see readily the 
necessity for mine signboards; because they are entirely 
familiar with the mine workings, it does not occur to 
them that the average miner cannot in a short time ac- 
quire the same familiarity with conditions. In the 
United States today, both metal and coal miners are 
largely of a roving disposition. Many of them are 
foreigners who are more or less ignorant of English. 
As a class, they require guidance in the matter of pro- 
tecting themselves from accidental injury. Mine sign- 
boards are in use in many mining districts of the United 
States, according to Edwin Higgins and Edward Steidle 
of the Bureau of Mines. Although in no part of the 
country has the practice become general, there are 
isolated mines that have worked out an elaborate sys- 
tem of signboards. There has been no concerted action 
looking to the adoption of certain universal symbols or 
signs, although there are manufacturers of signs, and 
some local mining organizations now working toward 
this end. 



Jab i i'H4 



MI\IV. \\l> SCIEN1 II K l'KI SS 







LSADVH I I '. i VLORADO 

. .|ll..\ ... ||l> Ml MM. IMUMKI IMlt'uiKi 

ikim rl\i. I.. lllPOSTAXl l». -\i,M Mi ClIAUPIOK, 

*.. \si. Vuumi. Mims Zl.xc Smiiiii: Tin Down- 

UIoIdi development in the Leadville district this summer 
marked Increase over that ol the past several rears, 
i hr.-. new (actors nave helped to this end, which combine 
to form tin- beginning ol another of tin. great revivals thai 
bavi occurred perlodlcalrj in the mineral activities ol tins 
urea, namely: > i • two outlying .li^-i i i<t >. which tor a Dum- 
ber of yean: have been considered as barren ground, are 
now producing n large tonnage ol high-grade gold and sllvei 
plant for tin' manufacture of zinc oxide from the 
lowei t-rade carbonate ore is being constructed by the West 
•td Zlni Mating i Reduction Co.; and (3) a leasing consoli- 
dation fur unwaterlng tin- flooded area known as the down- 
town mining district' Is rapidly nearlng completion, and a 
similar enterprise is being promoted (Or pumping the water 
from the old famous Fryer Hill territory. 

In the Lackawanna area and the upper Half-Moon gulch, 
several new mines have been opened within tin- past year. 
The Mt. Champion property is now one of the largest gold- 
producing mines In (he Leadville district. It Is situated about 
15 miles from the nearest railroad, in a locality that has 
long been looked upon as most unpromising. Obstructions of 
•■\-T> kind confronted tin- nun who knew they had a mine, 
and were determined to develop it. A good road, eight miles 
long, had to be built, and machinery had to he transported 
to the ground, and buildings erected in a district that is 
noted for its severe winters and short summers. After the 
mine had been opened, and shipping had been under way for 
a few weeks, it was found that the character of the ore de- 
manded mill treatment in order to obtain the best results. 
A 50-tOH mill was then erected at the foot of the range, about 
Bve miles from the mine, and a tram constructed to carry 
the ore. It seemed impossible that a mine could he made 
a success under such conditions, but it is now working steadily 
with a force of 75 men, and producing regularly 50 tons of 
ore per day which averages between 30 and 50 oz. gold. The 
mine is now developed by three adits, all on the vein at 
various depths, and the manager stated recently that there 
was $100,000 worth of ore blocked out. Other properties are 
showing equally favorable results, and it will he only a ques- 
tion of time until there will he several large producers in 
this district. 

The Sugar Loaf territory' is 'he other 'no good' ground which 
has come prominently to the front within the .last several 
months. Three important tunnel companies are now operat- 
ing in this district, and each of them is shipping a good 
tonnage of silver ore. The Dinero is the most productive at 
present. 100 tons per day being shipped, all of which con- 
tains rich silver-lead content. The Slwatch tunnel has opened 
a large body of lower grade material which is being produced 
as fast as possible. The Virginlus Consolidated properties 
recently developed the most important orebody that has been 
found for some time. A large vein of silver-bearing ore which 
assays up to thousands of ounces per ton was opened last 
month, and a steady tonnage is now being shipped. Other 
smaller properties are being developed, and It appears that 
a number of them will soon be in the producing list. The 



■I ol mining men all through tht slat* Is cm i on 

this and ih, Lackawanna country, ami men who know the 

district sa> that tin- i. rles in these localities will 

I revival of mining In Leadville that will rival the 

palmy days ol tin- sari] eighties, 
iii. construction of tin- zinc oxide plant i» probably attract 

nig in. ire widespread attention than any other work In the 
district. This smelter, when finished, will handle carbonate 

i «lii, I itains as low as 14','c zinc. It will give a 

much more satisfactory market for the ore, and allow a more 
favorable contract to miners of the camp. The plant will 
]'■ erected in units of 50ton capacity each, and the first Is 
about completed. As soon ns It is in good running order, 
and the management Ib satisfied as to Its efficiency, the other 
units will in- erected as rapidly as possible, until a complete 
plant of 200-ton capacity is reached. The last two units will 
I., equipped with roasting furnaces to deal with sulphide ores, 
and there is little doubt that If the industry proves as profit- 
able as it is expected i<> lie, other concerns will enter the 
Held with similar schemes. All this tends to throw a bright 
llghl on the zinc mining of the future. I.eadville is for- 
tunate in its deposits of zinc ores, both in the carbonate and 
the sulphide zones. At present, several of the properties that 
have been idle for a score of years are being put into shape 
to resume operations in their zinc Btopes, and as the demand 
grows the mining industry will keep pace with it. 

The third and perhaps the greatest factor in the advance 
of mining in the Leadville district is the proposal to dewater 
the Vnlnes of the down-town district. This territory covers 
an area one mile square, within which boundaries some of 
tb. largest mines of the district have been found. All of the 
properties have been worked out down to water-level, but 
heretofore no effort has been made to get at the orebodles 
that are known to exist below this point. Jesse F. McDonald, 
ex-governor, together with a number of Eastern capitalists, 
has secured a lease on all the ground within the basin, and 
is now preparing to start the actual work of unwatering and 
developing the formations at a depth of 1000 ft. Machinery 
is now being manufactured for the work, and all of the oper- 
ations will be done along the most modern lines. This enter- 
prise will do more to advance the general prosperity of the 
district than any other now under way. It will cause the 
reopening of numerous idle properties, and will give employ- 
ment to probably 1000 men. The success of this undertaking 
will induce the final agreement for the unwatering of the Fryer 
Hill territory, if it is not done before, and the two together 
will make a new Leadville. 

MANILA, PHILIPPINE ISLANDS 

dredges at wobk, ano others pttobabt.k. colorado, keystone. 

and Syndicate Mills. — Iron Mining. — Proposed Tax on 
Mine Output. — Bureau or Science Work. 

Regardless of whatever else may be said regarding business 
in the Philippine Islands, the mining industry continues its 
steady development. With the starting of the new Umiral 
dredge, and of the new dredge on the Malaguit river, Para- 
cale, there are now six dredges at work in the territory. 
Some attention has been attracted lately to the Bued river, 
where that river debouches into the central plain. ■ Here 
prospecting has been conducted with encouraging results. 
One California mining man recently said that if the prop- 



24 



MINING AND SCIENTIFIC PRESS 



July 4, 1!M4 



ertj were In the Sacramento valley there would be uo diffi- 
culty iu securing capital to put several dredges on it at once. 

An Australian. Mr. Murray, who has a patent device for 
saving black sands which collect on dredges, Is visiting these 
districts. In several places black sands have been found to 
carry good gold content. August Heise. well known iu Phil- 
ippine mining fields, has returned from the United States 
with engineers to examine his placer properties on the Hi- 
bong branch of the Agusan river, northeastern Mindanao. 
Mr Humphries, the engineer in charge, brought a steam 
drill with him. 

Most encouraging reports come from the new Syndicate 
mill on the island of Masbate, as well as from the Keystone 
and the Colorado. The output of the Colorado is said to 




Sold 



Cca/ 



SOUTHERN run in THE PHILIPPINES. 

be a large increase over previous years. The Syndicate mill 
is now being enlarged. 

Gold mining is still the most promising phase of the in- 
dustry. bu( in the Angat iron-ore district conditions are 
favorable for a much greater production of iron and the 
establishment of that industry on a sound basis. On Calani- 
bayanga island, at the mouth of Mambulao bay, Mr. Cavender 
is erecting a cupola to smelt the iron deposits found on that 
island. This deposit is one of the most favorably situated 
of all those found in the Philippines. 

Mining men have been deeply concerned lately with the 
attempt of the collector of internal revenue to place a 
tax of 3% on the gross output of the mines. Many conver- 
sant with the condition of the industry have felt that this 
is unjust, and would seriously cripple the Industry at this 
time. The proposed tax was rejected by the commission. 
Failing in this, the collector has tried to class gold bullion 
as merchandise and thus bring it under a tax of 1.5%. A 
meeting of protest was recently held, and plans are under 
way to form a permanent mining association in the Philip- 
pines. It is fortunate in one way that this incident hap- 



pened, as it has revealed the necessity for cooperation on 
the part of the mining men. 

The Division of Mines, Bureau of Science, has recently 
lost the services of F. T. Eddingneld, mining engineer, who, 
after five years' service, now returns to the United States. 
The mining industry has profited considerably by his service 
in the islands, and appreciates the work he has done. Paul 
R. Fanning, metallurgist for three years in the division, is 
another good man whom the Bureau lost when the economy 
wave of the Democratic administration struck the islands. 
The two most important pieces of field work carried on by 
members of the Division of Mines lately are one by Warren 
D. Smith, chief of the division, who spent two months in 
north central Luzon making reconnaissances in hitherto geo- 
logically unexplored territory: and one by Wallace H. Pratt, 
who spent a long lime on the Caraniuan peninsula making 
stllmar reconnaissances. During Mr. Smith's work, consid- 
erable mineralization was noticed in the region just east of 
the Cordillera Central. Whether these lodes will prove to 
be profitable remains to be seen. 

Development work on the gilsonite deposits of Leyte has 
been actively started by the Bryan Landon company o€ Cebu 
and Uoilo. Fred Burdette, manager for the Camiguin North 
Mining Co.. has begun operating on his sulphur property 
on the southern end of the island of Camiguin, north of 
Luzon. Some fine specimens of sulphur were recently exhib- 
ited by him at the Second Philippine Exposition in Manila. 
Mr. Seymour, a Wyoming coal operator at present in Manila, 
is looking into the coal situation. 



KM.COOTilJE. WESTERN A fSTRA II A 
i 

Labor Troubles Again. — Geology ami the Need fob More In- 
vestigations. — Edna May. — Golden Horse-Shoe Affairs. 

The labor unrest, which appears to be general in Australia, 
was in evidence in this state at the end of April. A dispute 
at the Edna May mine, as to whether the ground being worked 
was wet or dry. was settled by the manager, who agreed to 
wet wages: that is. above the usual rate for dry ground. 
Then the shovelers on the Trans-Australian railway went on 
strike for $3.20 per shift, the wage being paid by the con- 
tractors at the head of the line; but. though the Common- 
wealth Government offered an increase of 20c. from $2. so to 
$3 per shift, the men are still out. The latest phase of the 
unrest is represented by the fact that the committee of the 
Federated Miners' Union unanimously passed a resolution 
that on and after May 1 no unionist was to work where non- 
unionists were employed. This step was taken in sympathy 
with the employees of Millars Karri and .Tarrah Co.. who are 
out on strike because four non-unionist carpenters are em- 
ployed. The members of the Employers' I'nion promptly re- 
taliated by passing a resolution that they would employ the 
best men offering, regardless of their politics or creeds, and, 
If any of the various unions withdrew their men on May 1. 
all employers of the state, in whatever industry engaged, 
would simultaneously close down and lock out all employees. 
The result of this prompt action was that the Federated Min- 
ers' Union held a general meeting on April 26, and decided 
to leave the question to be settled by the Australian Labor 
Federation at its meeting in Melbourne on May 11. It has 
just come to light that iu two cases in which workers ceased 
work and broke the Arbitration Court's award, and were 
fined $4* and $4S0, respectively, by the magistrates, no fines 
had been paid. On this leaking out early in May. the West- 
ern Australian Government first stated that the fines had 
been paid, but finally admitted that they had not. Eventu- 
ally the first sunt was collected, but the larger one was reduced 
to $24 by the executive. So much for labor governments. 

Ever since Malcolm Maclaren's visit to these fields in 1910. 
the Chamber of Mines has been urging on the state govern- 



I'M I 



MINING \M> m || m n it no ss 






• ■ ■ 1 1 1 1 ■> of Increesli it with 

. » •.. in,. 

• i,l Hi. 
appointed Bvt • lira Bald in 191 1 but 

Instead <•! attacking »•■» (round, moal of their Ini 

. .ii n [i..l i.. ..1.1 erorkingB, nr tnerclv follow 
log i - ...I drawing deduction 

w pot-holea *uiik The Chamber "i Mini 
ihat "what it aranta i- ■ lyatematic leologleal mrvajr, ■> 
rareful ..- thorough, .i- exhauetlve, and mone] 

if, and it" beat qualified, the baai equipped, ami the 
moat wide)] iiiiiiiin. .1 experl obtainable '" .lr.i« the deduc 
none from the dma obtained.' 1 Moal nl the baa) known .... 
..f the world have el one lime or other Inapacted oui 
bul * nly one ol theae elaltora, Ualcolm Maclaren, baa 
puMtehed the nonclualoni he drew ir.im the data obtainable 
• in- «. have bad the experience ol H. P. Woodward 
and s. Goaeaal, who Joined the government minis departmenl 
in IK87 and 1890, reapectively! and had mapped oul th 
ami mineral arena ol Weetern Australia bj 1898. In his 
MuuUIhmik of the Gold and Mineral Fields of Weatern Aus 
trails pntrilahed In 1894, Mr. Woodward wrote ol the Oreal 
Mngall lode: "This mine is called the Day Dawn, after the 
tti st claim taken up on It. The stone is of a lilulsh mottled 
appearance, and the 'reer is ol great st/... and well Formed. 
It Is u true Assure vein, but Joes not follow any definite 
course, striking westnorthw. si. then north-northwest, and 
so on to the north; but this Is not of the least consequence, 
as from Its well defined walls there is very little chance 
Ol its cutting out." This nilue was turned down in 1897 
by the Day Dawn Co. of Adelaide, after producing £75,000 
from 30,000 tons from a lens above 150 ft H was then 
taken up by the Consolidated Murchison of London, and In 
1898 passed on to the Great Fingall company as a derelict. 
v second lens was found at 460 ft. and cut out at 1370 fi .. 
and a third at 1700 ft. which still continues. Mr. Woodward. 
In his Handbook,' pointed out in 1894 regarding the Golden 
Mile: "There is a large break In the country consisting prin- 
cipally of coarse-grained diorite extending over six miles from 
north-northeast to south-southwest, near the township of Kal- 
goorlie. Diabase (doleritel dikes seem to have played an im- 
portant r.'.le in the gold deposits here, and It is most probable 
i hat the gold emanation in the rich and extensive Kalgoorlie 
district took place in the period following these diabase erup- 
tions." The Kalgoorlie district is the only one mentioned 
by Mr. Woodward and Mr. Goeczel as containing this quartz- 
diabase, or dolerite. and none of the other geologists who 
have visited the country has ever mentioned the presence of 
.1 similar area elsewhere in the state, and until that is found 
.. second Kalgoorlie is unlikely to eventuate. 

Since starting milling a year ago, the Edna May mine at 
Weston's, over 100 miles west of Kalgoorlie, has produced 
(364,000 from 16,766 tons of ore and paid $103,000 in divi- 
dends. As the residue contains $5 per ton of recoverable metal, 
the output and profit will shortly be materially increased 
when the sand and slime plants start operation. The present 
i rouble is the fact that successive intrusions o£ granite even- 
tually cut off the lode in the adjoining Greenfinch mine on 
ihe west, and similar intrusions are being encountered in the 
Kdna May. The first bar appeared in the shaft at 124 ft., and 
the second has now been encountered at 200 ft. The first was 
only 18 in. thick, but the second is proving considerably 
thicker. The lode is erratic in strike, underlie, and thickness, 
but is wonderfully consistent in gold content, and is from o to 
4T, ft. wide in a generally east and west direction. Several 
adjoining claims on the east are looking promising, but the 
granite is making speculators shy of investing in them. No 
government geologist has visited the district, but other geolo- 
gists wisely shake their heads and say nothing after Inspect- 
ing the Edna May and Greenfinch. 



In ap 

mi ii lavela ..i ihi doldeo Hoi - sh... 

: Into .Li.' On lanoarj 

the • redll b i |isi sin. .■ then, 

•'■■I "i March I9U tat nel profll earned »» 110 

a total nt 1288,00 ibentnn Internal 

debenture redemption 151 i dividend paid in Oe i 

•' Thla i.-m.-H si .Li. ii balance ol 

1104,00 i- urn ,,i,- and the London man 

aging director, B. Protneroc Jom I on hit «:» to thla 
country in Inveatlgate mattera al the mine 

March gold return! from all milieu In the itatc totaled 
and dlvtdendi 1578,100. 



SALT LAKE CITY, I TAB 

Cm. n:i s miiix Alll III. lo COMPLKX Si l.l-llllii. Dm I .ivik 

Mil ill I' I Ml Sol VI s Ml I M 1 I 111, Ii VI I III I I, I I I V. -4'lialx- 

n\~i\ P I -s. Hoi i 111 us l-'niwn. 

in the treatment of low-grade ore depoaiu Utah has long 
been in the lead, being the pioneer In the development ol 

the porphyry deposits. At present H is solving the i|iieHtlon 
of treating the low-grade ore containing ■ combination of 
lead Bllver, copper, zinc, and gold. By .Inly l!i there will 
be three mills in the state treating these ores by means of 
chlorinaiion. The process is by no means new, but the meth- 
ods employed are. They were worked out in the University 
"i Utah experimental plain something over two years ago 
In X. C. Chi isiensen. a post-graduate student, and T. N. Holt 
of the University staff. The first practical use made of the 
work was at the Mines Operating Co. plant at Park City. 

where George H. Dern anil associates have a 10-year leas i 

the old slope fillings above the 900-ft. level of the Ontario 
mine. Here a great deal of experimental work has been 
carried out, especially in the mechanical end of the work. 
At present the Mines Operating Co. plant is running success- 
fully on ore that will assay about 12 oz. silver, 2 to 4% lead, 
and 0.6 to I'f copper. A saving of 80% Is being made. Re- 
cently a plant was luiilt for refining the gold and silver on 
the ground. The second plant is at Silver City, where Jesse 
Knight is hacking X. ('. Chrlstensen in a plant that Is using 
the same method of treatment. The operators are just get- 
ting this mill over mechanical difficulties which caused it 
to run intermittently. The third plant is that of the Park 
City Milling Co., which, under the management of George 
H. Scibirc'i, is remodeling the old Grasselli mill at Park City 
for the purpose of handling ores from the American Flag and 
custom ores. This plant it is expected will be in operation 
by July 15. 

The method is a simple one. The ores are given a chlorld- 
izing roast by means of a mixture of salt and coal. The 
fumes from this roast are drawn Into a condensing tower 
and later used for leaching the roasted ores. The chief 
trouble thus far encountered has been with the roasting fur- 
nace. As there was no one on the market that was satis- 
factory, it was necessary to devise a roaster for the occa- 
sion. At the Mines Operating Co. plant, hand-fed furnaces 
nave been used which have been unsatisfactory' in result and 
in economy of fuel. At the Knight-Christensen mill a round 
furnace with a flat revolving grate, heated by means of oil 
jets and a downward draft, is being tried. The roaster for 
the Park City Milling Co. mill has not been selected. 

A new roaster known as the Holt-Dern furnace has been 
used for the past three months successfully at the Mines Oper- 
ating Co. plant. This experimental furnace has 10 tons capac- 
ity, but has demonstrated that it eliminated dust or any 
volatilization of minerals. Besides that, it Is declared it 
will save 50c. per ton in fuel. A new furnace along this 
line is being designed, and It Is probable that all the furnaces 
at 'the Mines Operating Co. plant will, in the future, be 



/ 



26 



MINING AND SCIENTIFIC PRESS 



July 4. 1914 



Holt-Hern machines, although it is declared that Dwight- 
Lloyd sintering machines can be used. The Holt-Uern ma- 
chine It is declared roasts more evenly than any other, and 
actual tests have shown that a 10% greater extraction can 
be made from the ore. The furnace that is being designed 
will have a capacity of about 40 tons of ore per day. It is 
8 by 10 ft., and has a depth of approximately 5 ft. The 
chief feature is the grates. The grates are about a foot wide 
each and extend the width of the furnace. Each grate is 
made up of iron strips or bars half an inch wide and set half 



of the grates is set in motion and the ore drawn off from 
the hopper. Everything has been so arranged that the fur- 
nace is as nearly automatic as possible. One man can care 
for the feeding, the shaking, and the taking off of the roasted 
ore. The ore from the roaster is placed in open tanks at the 
Park City plant, while at Silver City it is removed to barrel 
tanks. The barrel tanks have a filter at one end through 
which the chlorine solutions are washed out. The barrel is 
then tipped the other way and the waste is placed on a con- 
veyor belt aod sent to the dump. The solutions pass through 




DALY-JUDGE PBOPEBTY, r-AltK CITY, UTAH. ENTRANCE TO .MAIN II AMI OS LEFT. 



an inch apart. The upper edge of the bara are equipped with 
haif-inch teeth. Bach grate is fixed to move over a roller 
bearing. The base for the bearing is also slotted so that 
the material drops down. Attached to each grate is an eccen- 
tric which has a movement or drag of 1% in. The eccen- 
trics are run by the same shaft. When these are set in 
motion the roasted cake is practically filed off, falls down 
through the grates and into the hopper below. The grates 
are set a half-inch apart and adjacent grates have an alter- 
nate motion. Suspended through the centre of the length 
of the hopper below is the air-pipe which supplies the blast 
for the furnace. The feed is from the top. and the roast is 
made at the rate of about one foot per hour. Arrangements 
are also made for the automatic feeding of the furnace. At 
the top of the furnace, which has a movable cover, there is 
a flue through which the fumes are drawn off. This is operated 
by an exhaust fan. 

The furnace is started by covering the grates with several 
inches of ore over which is spread chips soaked in oil. As 
soon as this is well under way, the feed, which is ore mixed 
with salt and coal, is started. This makes a continuous 
operation, with about four feet of ore and roasted material 
resting on the grates. As roasted ore is needed the shaking 



launders to precipitating tanks. The leaching by the barrel 
tanks takes about five hours. 



SYDNEY, NOVA SCOTIA 

GOLD MINING hi Guysbokough County. — Wateb Power Avail 
able. — New Railway. 

Within the last few months, gold mining in this provino 
has received a little more impetus from the steady yet 
quiet success of one or two operating companies situated 
mainly in Guysborough county. During the last year a total 
of 7324 tons of ore was mined and crushed, yielding on the 
average $fi,14 per ton treated. This is about the same return 
as the previous year. Most of the gold extracted was ob- 
tained from four mines, and of these, three, the Beaver Dam. 
Caribou, and Gold River, had a profitable year, the yield 
being $12. $14.50, and $15 per ton, respectively. In compar- 
ison with these results, the remainder of the mines in oper- 
ation show a low average return. Nineteen companies in 
all were at work throughout the year or during part of it. 

A scarcity of fuel and the transport difficulties have al- 
ways been drawbacks to sold mining northeast of Halifax 



Jnl.v 4 l'i|» 



MINING WD 91 II \ l ll K PR 






111 Hir .riirnl ».!»..- --rlliatU' M I • 11B £ I' 111 > IK , S((r|| 

tlun ha-, been dntg i,. ll,, »„•. 

although most ..; the caichmeni »»< are nestled, en 

or ih. topograph! i>t tin hi ...I .in, in,. i 

io ailvant,, In |o ,. 

.■•I lurl mul III, high 

Al (ll-- mm, ■'( ill, QoldenvUIS MIhiuk Co. u dam ha* been 
built al U>< rails, which kIi. si In t( , anil 

thi» t providaa appratlmati Ij 

&oo b|i . tiniii iiiuiuu in pumping mul crushing operal 

III.' building ,ir a branch iaii».i\ in iiam, through (In- mm 
inn districts ol Halifax sod Quyahorougb, running (rani Dart- 
mouth mi li.iiii.ix iiiiriior northeaet, mul passing iii<- beads 
o( ail (hi- harhovi »u i in- ooaal "i Canao mul Qojrsborough, 
on (in- suaiis ,.i Canao, baa bass started, Whan Bnlabad, 

(hi- I ill,- »ll! -i tO (hi- in I [ll li u cnmpmii, 

n-Kuni to (h>- aaaj transport «' machinery end supp 

Nona or ih,- raoanl <i "t tin, tungsten, manganese, 

and antlmonj area haw proved to be ol anj greal value. On 
ih- longaten ana, ooJj aboat l" ions ol acheellte was ex- 
tracted, although eonalderablt development and prospecting 
work was undertaken by the company, Operations have ceased 
satire]] on the antlmonj sreaa al Weal Bore, Tin- discovery 
in manganese, recent)} reported in Quyaborougfa country, is 
mul unproved, The on- is a One-grained pyrolui 

DAW80N, YVK0.\ TERRITORY 

SiivikI.im- On "l CHS DlBTBlCT, vm> WOBK ON nil SELVES 
Kin,., Aua.11, Win FOOT, i.ND M aw i: CLAIMS, 

Sin; live ions o( Bllver-lead ore, assaying $250 per ion 
has been hauled from the Silver Kim; claim to Mayo landing 
on th,- Stewart river, for shipment to the Consolidated Mining 
A Smelting Co."s smelter al Trail, B, C. The Silver King is 
situated 28 miles northeast ol .Mayo landing. The vein where 
i,,-, I in i it. wide, Btrlklng approximately south IB' west 
with a dip Ol '■-' east. Both walls an- well defined. The hang- 
ing wall is schist, an, I the foot-wall quartzite. Development 
work is being ilon, through an Incline shaft, which has reached 
a depth of 70 tt- The owner of the property, II. \V. Mc- 
Whorter, Intends to continue the shaft to the 300-ft. level this 
summer. On the Adam claim, 2300 It. from the shaft on the 
Silver King, Mark Evans has uncovered a vein 5 ft. wide, with 
two bands of galena in it. varying from 1>_. to 3 in. wide, 
which assay high in silver. As he is prospecting nearly in 
line with tin- strike of the Silver King vein, it is no doubt 
a continuation of (he same. Owing to there being from 10 to 
_ ;t. of frozen gravel (glacial drift) to sink through before 
reaching solid formation, and which makes prospecting for 
(he vein both slow and expensive, .lack Alvinson and J. E. 
Ferrel, owners of the Web Foot claim, adjoining the Silver 
King on the northeast, have tilted up a churn-drill to prospect 
with. Grant Huffman, on the Mable claim, has a shaft down 
28 ft. and intends to drive and try to cross-cut the vein. 
Fifty-four claims have been staked and recorded in the vicinity 
of these properties; not having a summer road, quite a num- 
ber had provisions and supplies hauled in before the snow- 
melted and will prospect during the summer. The Yukon 
Council has voted for an expenditure of $17,000 for roads in 
this district this summer, $5000 of which will be spent build- 
ing a road to the silver-lead properties. The appropriation 
of $17,000. while not sunicient to build many miles of wagon 
road in a country like this, is evidence, however, that the 
Dominion Government will be willing to do more as develop- 
ment of the district proceeds. The opening of rich silver ore 
has attracted a great many prospectors, and quite a number 
are out in the hills around here this summer. The outlook 
for the future is bright for this district. A stampede is 
neither expected nor desired. As yet the properties are in 
the earliest state of development. A prosperous and steady 
producing mining camp will be here in the near future. 



W » TOBK 

C.NM, ll, I , /.|S, ,' ,,„, 

'"" N ''« Comim ii \t,.„, Bffaijsii ciinu i I-.,,,, 

BADO.— Llin.Mli-v 

Uldsun i ih slwayi unproductive ,,r sews In I 

and <l„ .i.lil. „( the WW 

ih, Connecticut Elm « ,,i Wyandam 

Incorporated, with a capital or ti.oun.ooi>. i„ mini 

in .\v» v,,ii, and atlaa 1, The Inoo m William 

i; PblUlpa, whn baa promoted other ilm nines Michael 

I, Rlordan, „ Da iratlo politician ol Brooklyn; and Hugh 

in, ol Port Richmond, Btaten Island. Th< Ignlncaaci 
oi Wyandaugb is no' dear; the nearest approach 

i, an,,- is the village of W> an.lan, h. Hot far heyoli.l Hicks 

Vllls, on Long Island. 

Th,- Chattanooga Co -r Co., capitalised at »." 

1 n organised, I. I. Carter being president; John Stag) 

tiisi vice-president; •', ft Miller, second vice-president; s 
E Whltaker, secretary; and p. it. Carter, treasurer The 
Company owns 200 acres of laud a short distance sort 
of the Duofetown Sulphur, Copper & Iron Co.'s property in 
the Ducktown district, Tennessee, which it has been explor- 
ing by diamond-drilling. Evidently the results have been 
BUfllClentl] encouraging to justify further exploration. The 
Ducktown district Is an old one, and it would be Interesting 
if a new producer should he developed there. Those In- 
terested in the new Company are, as the name Indicates, all 
business men in Chattanooga. 

An American property of which we hear little on this 
side is the St. John Mines (Colorado I, Ltd., on the west 
side of Glacier mountain, about one and one-half miles south 
ol Montezuma, Summit county, Colorado. Last year E. J. 
and B. I.. A. Munby sold a group of 19 claims containing 
silver-lead and zinc ores to English investors, who have 
formed this Company. E. H. Piatt has estimated that the 
ore reserves amount to 93,000 tons of probable ore, .and 
23.000 tons of stope-fllllng which can be milled. The mill- 
ing ore is said to contain a gross content of $30 of silver- 
lead nnil zinc, while the high-grade ore now being shipped 
to smelters is said to yield $35 per ton net. Development 
work is reported as showing good ore. The mill is being 
remodeled. The Company is capitalized at £75.000, and 255.000 
out oi the 300.000 shares have been issued. For the prop- 
erty, £3000 in cash and £30,000 in shares was paid, while 

t2n. > cash and £5250 in shares was paid to the promoters. 

Several large companies have had a good deal of trouble 
with litigation lately, and the minority stockholders in the 
Alice Gold & Silver Mining Co. have started a suit against 
the Anaconda under the Sherman anti-trust law, as men- 
lioned in this journal of June 27. Probably nothing much 
will come of the suit itself except to relieve the 'psychologi- 
cal depression' in the legal industry. E. A. Wall has with- 
drawn his petition for a receiver for the Consolidated Cop-, 
permines, and the reports which are always circulating as 
to the plans of that Company now say that an experimental 

dotation plant will be built. W. O. Allison has succeeded 

in his attempt to oust F. A. Heinze from the Ohio Copper 
Co. New rolls are being put in the Ohio mill, and its capac- 
ity alter July 15 is expected to be 3000 tons per day. Just 

now 2000 to 2300 tons per day is being milled. The Old 

Dominion litigation still drags on its weary way. Not long 
ago the Court of Errors and Appeals of New Jersey, the 
highest court in the state, issued a decision permitting the 
Old Dominion Copper Mining & Smelting Co. to pay a spe- 
cial dividend of $10 per share, amounting to $1,620,000, out 
of the proceeds of its action against A. S. Bingham. God- 
frey Hyams. who sought to prevent this payment, is indefat- 
igible in litigation, however, and will doubtless at once bring 
fresh suits. 



as 



MINING AND SCIENTIFIC PRESS 



Jnlv +. 1!»H 



IMEMG SUMMARY 



The news of the week au t"l<l by our special corre&pondenta and refected by the local pre**. 



ALASKA 

ClUSA \ V 

Recent arrivals at Dawson state thai there in nothing being 
foniiil at C'hisana outside ol last rear's discoveries. Wood 




MAC SHOWING SITUATION Or (IMSANA DI8TB1CT, \l\>KA. 

costs $l»u per cord. It is doubtful whether there will be 
over BO days' sluicing for the season. 
Idttabod 

A new dredge is being constructed on Otter creek for Riley 
and Marston. 

ARIZONA 
Cochisk. County 

Largi • rushing machinery has been delivered at Hie Junc- 
tion sliaft of the Calumet & Arizona property. It will be 
ready for work in a month or so. and will handle about 
1 I"" tons of sulphide ore per day from this and the Briggs 
shaft. Later on the Hoatson ore will be sent to the plant 
also. Cutting of the large pumping station at 1800 ft. in 
the Junction shaft is proceeding satisfactorily. This station 
will probably drain the Dean area, as well as upper levels 
in the Junction. The company will add to the electric equip- 
ment of its plant a belt-driven General Electric generator. 
mperes at 24 volts and 4Snn amperes at 12 volts, with 
direct-connected exciter. 

Through Walter Douglas, the Phelps-Dodge company has 
bought the Tombstone mines for $500,000 from the receiver 
in bankruptcy, A. L. Grow. This was the only bid for the 
property. Heavy flow of water has hampered work at these 
mints in the past. 

Gii.a County 

(Special Correspondence.) — Underground work in the In- 
spiration mine has been hindered by shortage of air. Another 
compressor is now at work supplying 3000 en. ft., making a 
total of T",00 cu. ft. per minute available. At the new mill 
the trestle should be finished in a few days. A composition 
loofine material is being laid on the main mil] building. A 



good deal Of riveting remains to lie done on the concentrate 
bins. Work * in progress on the concentrator transformer 
and distributing station. The latest addition to the test-mill 
is five .Metals Recovery Co.'s pneumatic flotation machines 
and auxiliary equipment, which are to be given a thorough 
test to compare their efficiency with .Minerals Separation 
process. Although the two professes depend upon the same 
basic principle, the means of acquiring the final result are 
quite different. As soon as the necessary parts are received 
from the Kast. a series of experiments are to be started with 
the Bradley preliminary crushers, to determine the best steel 
for rolls and dies. These machines, which gave good results 
mi a dry brittle ore. were found to wear excessively in crush- 
ing the Inspiration damp ores, but with a change to one. 
or a combination of modern steel alloys, it is thought that 
much' better results will be obtained. Work is proceeding 
on the power-plant at the smelter site. Foundations for the 
turbo-generator have been poured. As the new 25-ton slag- 
pots, recently received, are not designed for fast haulage 
around sharp curves, the idea of obtaining slag from Globe 
for the reverberatory bases lias been abandoned. Instead. 
a blast-furnace obtained from the Old Dominion smelter is 
being erected on the furnace site, so that the slag can be 
made as required. The furnace will probably be ready within 
a week, and the foundations will be poured as soon as pos- 
sible, as this work is already far behind. 

Miami. June 28. 

Santa Cat/. Coixtv 

In the lengthy suit of F. .1. Heney for a third share in the 
Three R. mine, the court at Tucson awarded him 1200,000 on 
June 2ft. Full details of this case have been published in 
The OasiH of Nogales. 

¥"ai u»*j County 

(Special Correspondence.) — Good gold-bearing veins have 
been opened by prospectors on Curry creek, and Granite 

creek. Two feet of galena ore has been cut at 400 ft. in the 

Swastika mine. It is similar to the ore shipped some time 
ago, and whicb contained up to 800 oz. silver per ton. 

Mayer, June 2.",. 

CALIFORNIA 

Amadob County 

(Special Correspondence.) — In the suit of the Kennedy Ex- 
tension Mining Co. V. the Argonaut Mining Co. for $1,000.- 

i tor wrongful extraction of ore and other claims, Judge 

Fred H. Wood gave his decision on June 29 in favor of the 
Argonaut company. The latter Company is entitled to retain 
the gold recovered from ore from the vein in dispute. The 
principal issue was as to the ownership of the Argonaut vein. 
The plaintiffs claimed that no vein apexed in the Argonaut 
from end-line to end-line, and that the orebodies in dispute 
were not on the Argonaut vein at all. but on a vein apexing 
in the Muldoon claim, owned by plaintiff. The defendants 
upheld the continuity of the Argonaut vein, showing that it 
could be followed from the north end-line, underneath a lava 
cap, southerly through the claim beyond a point where it 
would cover the orebodies in dispute. They were also able 
to show that continuous stoping had taken place from the 
bottom of the Argonaut mine up to the 280-ft. level, and that 
from there to the claimed apex underneath the lava-capped 
lode line the vein could be followed all the way, although not 
of large or high enough value to justify further stoping 



July 4 l'i|i 



M1MV. AND St. II Mil It I'M SS 






The l IIIOD ol the 

routlnuli < •>> thi v< n> >" I 

< I u>t iik flml in OVOrtnTOSt fault, llo- 

which ».«- prartlcall) conceded bj experts for 

.mil In addition lo ill. il faulting "t »•■* 

rral hllllilr.i! feet Which tin* Claimed uinild dOStrO) lln- vein 

eonUoolt] ol iti«' Argonaut. Thi ••.■ii>i>>>> ol the court II nol 

bvbIUi il ibli nun Tt — tried 

(or ihr I'liiiniirt b) Measra Perrj and Dellay, and (or the 

ml bj Hum Curtli H Llndle] Mid William B 

Colbj all "I San Kl.m.N. .. \ 1...111 Cable In LOUdOO 

■bowed Hiii thi Plymouth Consolidated equipment • 

rollowi shad guldi in plan-, mill <:'■■■ completed, 

\nil build impleted 

- «nii .Inn. 

Ill 111 Col KT1 

The Qnggenbetm Interests, through tin-ir manager, C 
■oqnlred ■ bugs ana of ground on Butte creek, 
Rve miles from Chico. This wan owned b] the Drexler people. 
One ol the Company*! dredges al Orovllle is lo be dismantled 
nnii rebuilt "ii tbe new site ibis summer. The dredge operat- 
ing on the American river near Auburn is returning good 
results. 

Nivai.i Cot It 1 1 

The North Star Minis Co. has declai'til lis second i|iiai lerly 

dlrldend, of |S0,000, for the current year. The Brunswick 

Consolidated has also declared a dividend "I Be, per share. 

amounting to $IS.00O. The annual meeting of the Zeibrlghl 

Minim: Co, was held In Nevada t'ii> on Jnne S3, Develop- 
ment is to be commenced on lis property In Bear valley, 

i'l ni v-. COl v iv 

The copper deposits on the weal slope o( the easi range 
Ol thi Sierra Nevada, to the northeast of Indian valley, and 









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MAC SHOWING SI I IA I ION OF TI1K ENQELS MINE. 

embraced in the claims of the Eugels Copper Mining Co., are 
described in Economic Geology for June, by H. W. Turner and 
A. F. Rogers. The nearest railroad point is Keddie on the 
Westers Pacific line, 30 miles distant by wagon road. The 
ore in the main Engels mine occurs in a fresh massive 



.ti.ni 1 1 . ibundani metallic m 

magnetite, bornlb |, 

absent in thi Bnperloi ml 

"J thi '• i , Hi. ..-i minerals srs chwffj ilom ktlnl 

planes, and sppear n ■ llant reins Ths ors i» bornlti and 

chalcopyrite In u gmngus "i ■ gram iiin.ni. hornblende \ 

160-ton mill employing ths Minerals Baps i notation 

i» being erected i" I real thaw i u pro* 

men are employed under the dlrectl i I B Paxton 

Sli mi, OOI H ll 

iBpeelal Correspondence. I v ::,.,..i level >nl was mads 

recentl) In the Motor gravel mine, in the Port Wine dl 

The gravel to tar averages about $m per cu yd Operations are 

conducted through a UOO-ft. adll \ \i Davis Is manager. 

The Iowa .ii in inin. in ii,,. Scales Diggings district, Ih to be 
developed bj Ban Francisco ami Oakland people in adll 

I i long will be driven to cut the lava-capped chai I. 

Win. C. Pershbaker is consulting engineer, 

Porl Wine. Ji 25, 

The Kate Hard) mine, on Oregon creek, is developing well. 
High-grade ore was cul recentl; In a raise abow the main 
adit. 

A verj rich shoot of gold on- was opened In tin- Tlghtner 
mine at Alleghany on June 29. For several days the mine 
«as producing about 11000 per day. and tbe new shoot has 
j i, Ided $1". so far. 

'I'l 'III I ,1 M I 'ill .VI V 

(Special Correspondence.)— The Omega mine has been 
bonded to Mrs. U. A. Capell and Mrs. A. D. Ireland, ol Ball 
Lake City, and operations will begin Immediately under the 
direction and supervision of Joseph Loney, The properly has 

1 n extensively developed by C. W, Avers, and is equipped 

wiih modern mining and milling machinery, it is rated among 

i hr most promising mines in the Rawhide diisrlct. Rich 

ore is being extracted from a mine near Steven's bar bridge 
by Fred Klein, owner of the property. Good results are 
iihlained by grinding the ore in an arrastre, but this method 
may be abandoned and a mill erected if prospects continue 

good. The vein is about >> ft. wide. Development work 

has been in progress for several months at the Louisiana mine, 
mar Tuolumne, and within a few days the milling of ore 

will begin. A large compressor has just been installed. 

The shaft of the App mine, at Stent, is being repaired, pre- 
paratory to active mining operations. Tbe property is in 

charge of Alex. Chalmers. The vein at the Wheal Rough. 

near Soulsbyville, has been cut 300 ft. below the surface, and 
driving east and west will be commenced at once. The vein 

assays well where cut. The adit which is being driven to 

drain the Springfield Tunnel & Development Co.'s mine, and 
which will be more than a mile in length, is in 1300 ft. 
W. M. Hall, of San Francisco, and S. Bogle, of Tai-oma. two 
nl the directors of the Company, have just returned lo Iheir 

homes from a visit to the property. The new 5-stamp mill 

al the Hop- mine, near Sonora. has been in operation for 
several days, and il is reported that the ore is yielding 
satisfactory returns. 

Sonora. June 27. 

The old Sugarman mine, on Bald mountain, is yielding lis 
owners some rich pockets of gold ore. 

COLORADO 

Gilpin County 

After being shut down for about six months, operations 

are to he resumed at the du Pont-Kelley syndicate mines at 

Quartz hill, the German. Whlte-Klrke and Belcher, which 

produce high-grade uranium ore. Forbes Rickard is manager 

Montrose Coi'.nty 
I'm-iy tons of carnotite ore averaging 12'; uranium oxide. 



30 



MINING AND SCIENTIFIC PRESS 



Julv 4. 1!M4 



and worth $43,200, was shipped from Sallda to New York 
tin Jane 23. It cane from the Paradox field. The cost of 
mining and delivering a ton of this ore averages $65 per ton, 

til «hich $::l is tor mini";;, and $25 for transport. 
Turin Col'XTY (CRIPPLE t'lll.tKI 
tl is expected thai preliminary work on extensions of the 

Roosevelt drainage tunnel will lie finished in a few days. 

The Howard shaft of the Mary McKinney company is to be 
sunk from 600 to Trio ft. Regular ore production is coming from 

this shaft. Eighteen inches of ore worth $40 gold per ton, 

and containing seams of sylvanite, has been cut at 100 ft. in 

the Cold Bond mine on Gold Hill. Rich 'float' ore has 

I. i round on some fractional claims on the south slope of 

Beacon hill. The Golden Cycle company has completed a 

s at inn on No. 17 level, and is now cross-cutting to the ore- 
shouts. The shaft is being sunk 125 ft. deeper. The electric 
pumps at No. 16 level are raising 450 gal. of water per minute. 
The Company is mining 5000 tons of ore, and 25 sets of lessees 
are extracting 2000 tons per month. Dividends totaling $270,- 
000 have been paid this year. 

IDAHO 
Idaho Codkty 

A good deal oi interesting work is under way in the Ell; 
City district A .'.-stamp mill is working at the Black Pine 

mine. H. B. Bupplee is manager. Development is being done 

steadily at the Colonel Sellars. and Mrs. M. A. Parr intends to 

en-ct a mill. In the Strong claims is 8 ft. of $8 to $17 ore. 

A 20-ton mill is operating at the Mascot. A. Kincaid has 

given a bond to Theodore L.' Lammers of Spokane for the 
Evergreen Consolidated and Dewey groups, consisting of n 
claims, about eight miles from Grangeville. on the Clear- 
water river. The bond includes all equipment on the prop 
erty, also a fine assay office, and water for 250 lip. from this 
river. About 7000 ft. of development has been done on the 
property in the last 15 years, and large bodies of gold-copper 
ore are opened. The equipment will be Installed by Spokane 
manufacturers, and will first operate on the hlgh-gradi 
milling ores from the St. Patrick claim. 
Shosiiom County 

The Yankee Boy Mining Co. shipped 271 tens ol ore worth 
{35,461 in 1913, making a profit of 310,915. Profits of all 
this county's mines last year now totals J4.7S7.690. 

The Bunker Hill & Sullivan company paid dividend No. 
202, of $81,750, on July 3, making a total of $15,301,500 to date. 

Men are overhauling the Blackborse concentrator, in the 
Murray district of Idaho, to he used for milling the ores 
of the Paragon Consolidated mine, of which L. W. Stedman 
is manager. New rolls and a Harz Jig have been Installed, 
and it was expected that the alterations would be completed 
last week. The Paragon ores contain lead and zinc, and it 
is said the Blackhorse mill does good work separating 

both, saving approximately 75 r ; of the metal content. Work 

has been resumed at the St. James mine, adjoining the Sun- 
set mine, on Sunset peak, near Wallace, owned by W. A. 
Clark. 

MINNESOTA 

One of the worst storms of recent years was raging on 
Lake Superior at the end of last week. Many steamers were 
reported in trouble and there were rumors that three sank 
on the north shore. All telegraph and telephone wires are 
down. The large steel steamer Mataafa stranded on the 
breakwater piers while trying to enter Superior harbor on 
June 27. She was released and towed to the Great Northern 
locks. 

M/ssonn 

Jasper County 
The Clifford Dry Concentrating Co.'s plant at Duenweg is 



being dismantled, after experimenting for over a year. A 

flotation plant Is being operated by Hays & Thomas on the 
Underwriters' lease, west or .loplln. The process is a 'secret' 
one. 

MONTANA 

Montana's mine output of gold, silver, copper, lead, and 
zinc in 1 H 1 ::. according to Victor C. Heikes. of the l". S Geo 
logical Survey, was valued at $61,900,546, against 364,754,613 
in 1H12. a deojease of $2,864,067, due mainly to the decreased 
output of gold and copper. The value of silver, lead, and zinc 
combined was $3,771,202 greater than in 1912, while the 
value of the gold and copper was {6,625,269 less than in 1912. 
The production of gold in 1913 was valued at $3,493,432, as 
against $3,626,236 in 1912. The production of silver in 1913 
was I3,S19.?01 oz„ against 12,731.638 oz. in 1912. Copper 
decreased from 309,73S,873 lb. in 1912 to 2S7.X2S.699 lb. in 
1913. Lead increased from 7,446,749 lb. in 1912 to 10.935,827 
lb., in 1918. Montana's zinc ores in 1913 yielded 88,673,083 
lb. of spelter, against 26,918,881 lb. In 1912. 
Cascade Count* 

Work on the new power-plant of the Montana Power Co. 
at Great Falls, on the Missouri river, is so far advanced that 
it is likely that part of it will be in operation by January 1. 
I'M.". At the dam. 50,000 cu. yd. of concrete has been poured. 
the daily rate being from 1300 to 1400 yd. Power-house foun- 
dations above water-level are finished. Six 15,000-hp. units 
are u> he installed. About 500 men are employed in the 
camp. Six miles upstream, at Rainbow falls, the Company 
has six 6000-hp. units at work. At Thompson falls, on Clark's 
fork of the Columbia river, a plant of about 40,000 hp. is 
iiriuu constructed. The St. Paul railroad will probably take 

. I hp. from the Great Falls plant. 

Sn \ bbbow County. 

The Edith Ma\ vein has been cut at 2S00 ft. in the North 
Butte mine, where it is 3'_. ft. wide, assaying 12.59! coppei 

mill 13 oz. silver per ton. The Anaconda company will add 

to the electric drive equipment of its plant Hi induction motors 

ranging from 25 to 50 hp., all of which have been 

from the General Electric Company. 

NEVADA 
Cm in iui-i. Cot is ii 

The Nevada Hills Mining Co. reports as follows foi Mai 
Ore treated, 5300 tons; average value, $7.99 per ton: loss in 
residue. So.Sc; net profit $5251: development, 54.s it 
$1.08 per ton; total resources. $220,893. Profits were reduced 
by shaft sinking and other work. 

Eureka County 

Following the addition of a toothed roll crusher, ball-mill., 
classifiers, a 14 by 24ft. Oliver filter, and other apparatus, the 
Buckhorn mill is now treating 300 tons per day. which i^ 
almost full capacity. 

Esmeralda County 

The Goldfield Consolidated Mines Co. acquired S7' .,. or 592,- 
000 of 6S0.5O0 issued shares of Aurora Consolidated, which 
is capitalized at $1,0011,000. the basis being $877,000 valuation 
of the entire property, including the mill which has a capacity 
ni 500 tons per day and has just commenced operations. This 
price is $225,000 less than stipulated in the original option. 
The Knight directorate has resigned and George Wlngfleld 
was elected president. A. H. Howe, secretary-treasurer: other 
directors: Albert Burch, .1. H. Miller. Charles E. Knox. Frank 
Manson. and Henry M. Hoyt. The mill was designed by Kirk 
and Leavell of Salt Lake City. Mr. Leavell, who remains in 
charge several months, will be succeeded as manager by L. H. 
Metzger, who has been with the Goldfield Consolidated six 
years, latterly as mine superintendent. 

The Goldfield Consolidated Mines Co. reports as follows for 
May: Development totaled 2388 ft. at a cost of $6.91 per foot. 



Jul) 4 l'M4 



\II\IV. \\i> m II Mil h I'KI SS 






' It n[ III 1 1 11 Ilk; 

nothing Ol Hill" 

mblnatloa Clermont and Red i mlM 

-in ob Ihi in ii" Bl tlon ol Hi- 

ktohawl mine » ■ -t to ihi north, and produced U 

| On ih>- !'■ IB Um Kranclii Mohawk 

I waa ran mi.'ci mil prodOMd 111 low 

Ol 111 or. lin Um -....ml level tb< 148-B kIII In Ih. Mohawk 

\.-m waa extended iin.i i lucod ISO lona ol 110 ore Develop 

.i level in ih.- Mohawk Jumbo vein produced 

i« i>( ill in.- Tli.- tint -III mi ili«- (ourlh level In the 

d produeod 113 tona oi $i" ore. Development in 

lhawk vein BMI ih.- nl.l t"'T ItOPe, between 111.' Ililril ami 

■ level* produced 160 Hum of $14 ore. 

ill... are treated yielding ■ nel profli 

<>f 1166,048 Toil ate 16.81 t"-r ion. Includlni %:'■ .07 

ior lulu i uu nml development $i 68 for treatment, and Be. foi 

. v.iininiiiL tb( torora mine In Mineral oounty, 

Hum u Col N M 

Bamplei from the Beven Troughs Coalition mine a) 1160 
and ISM ft. depth vary from $'.m to J-T^T per ton, On the 
Former l.-v.-l 10 In, ol - been opened for 190 ft. A 

■mall cur of concentrate recently returned $883 per ion. 

Nil i '. 1 1 \ n 

it l» reported thai the largi property oi ih<- Commercial 
Mm.- & Ullllng Co. is under option to outside capitalists. 
The claims included arc the Crescent, Rellly Fraction, Jump- 
Inn Jack, Btray Dog, Little Grey, Indian Camp, and Chipmunk, 
also share Interests In the Mustang, April Pool, and others, 

with control of tin- War Eagle 20-stamp mill A 

head-frame has been erected al the White fans. The vertical 

shaft Is to be sunk from 210 to 3io ft. At the Associated 

mill, the Consolidated will use 10 stamps, a tube-mill, and 
cyanide plant. 

Daring the week ended June -'7 the mines al Tohopah pro- 
duced 11,806 ions of or.- worth 6301,766. On July 21 the 

Tonopah Mining Co. will declare a dividend of 2-ic per share, 

amounting to $250, Profits for the last three months 

total $880,916. At 1020 ft. in the new shaft of the Extension 

mine, tin- Murray vein is 23 ft. wide, averaging $20 per ton. 

Of this, -i ft. of sulphide ore is worth $H"> per ton. -At 980 

ft in th.- Merger, the on- shorn is 10 ft. wide for a length of 
800 fi.; at 1070 ft.. 4S0 ft. long, of great width In places; and 
at 1170 ft.. CSj ft. long, the lirst shoot of 400 ft. lining worth 
$20 pe r ton. Shipments in 1914 to the end of May totaled 
3223 ions worth $57,611. 

OREGON 

BAKfll CiUMY 

The Independence mine, near Granite, has been unwatered. 

C'yaniding tailing at the Red Boy will be continued until 

November. Mill machinery is being hauled from the Psyche 

to the Last Chance mine in Cable Cove. There will be 

drilling contests between miners from the Mammoth and 

Columbia mines on July 4. Work at the Buck Gulch placers 

has been stopped for the season. Work is to be started at 

the Mayflower claims north of Sumpter. A new company 

has been formed at Baker to work a limestone deposit in 
Pleasant valley. 

WASHINGTON 

Ferry Counti 
(Special Correspondence.) — At 400 ft. in the San Poil Con- 
solidated mine, a new orebody assaying $15 per ton has been 
opened. In the south end of this level a drift is being ex- 
tended to cut ore developed at 300 ft. The mill is treating 
95 tons of ore per day, about 30 tons coming from the Knob 
Hill mine. A new assay office has been built. The Knob 
Hill is also sending three or four cars of ore per week to 
smelters. More litigation has been started in this camp, as 



* I i .-■ i .. ..ml U i i. ■ 
Michigan, »r. lulng ihi North n Powei * 

il ■ ••»•■ I liiortKHK.- tor f I 

pan hoard, i. in ti i.Hik« a- ir ih. presiding Judge -.t ii>. 
.•.mi win hold iiiui and other creditor! would 

laldered Ih-i.m.- the mortgagee and all credlto 

polled li, li.ii, alike. 

Republic, June 10 

I VADA 
AmritTA 
(Special Correspondence.)— Dark oil l» reported in th.- 
Monarch well, section 6, T. II n it. I v> on Red Dear nvi-r 

A little dark gl n oil was brought up in th, bailer and 

drilling stopped until tankage could be provided. This writ 
itarted near the base ol the Edmonton shale and al MO tl 
where Mopped, should be In the Bearpaw ahi he top 

,u the Moiiiana formation. 

Calgary, .h 22. 

l tic 1 1 1 - 1 1 CoLuimu 

According to I. M. Wolbert, representing Spokane, 
and Kaslo people, a dredge costing from $l2. r ..nnii m JlT.'.iion 
will in- constructed on the Lardo river al Qoldhlll this sum 
im-r. A railwaj runs mar the site, so transport will I.- 
Al present, a Philadelphia syndicate is working a drag-line 
dredge In this district, ami obtaining 7-">c. per cubic yard iron 

12 tO 16 ft. depth. 

Oh IARIO 

Official returns ol mineral production of the province for tin 
Aral quarter "i 1914 show the following results: Gold ore 
I. 112,826 ions yielding $10.66 per ton. of which PoTCU 
pine produced 104,880 tons averaging $10.96 per ion: silver ore 
ed from Coball (94.49! of the total), Qowganda, South 
Lorrain, ami Casey, 163,066 tons, which yielded silver worth 
$490,894 less than the same period of 1918. 

I 




M KIM. I V-M AlllcAnll MINK. COBALT. 

Trenching on the Tough-Oakes ground uncovered a new 
v. in near No. 3. The latter averages about $120 per ton over 
10 in. width lor Sun It. High-grade ore is being crushed in 
tin- mill. Metallurgical tests are being made on the ore. 
Yukon 

Canadian Klondyke Co.'s dredges produced 3351 oz. gold 
during the second week of June. 

MEXICO 

American employees of the Crestou-Colorado, in Sonora. 
and El Rayo and Dolores mines, in Chihuahua, of the Mines 
Company of America, have returned to their respective prop- 
erties for the purpose of resuming operations, or carrying on 
development work. No effort is being made to resume opera- 
tions at La Dura, as this property is situated in the Yaqui 
territory, and in a district where it will be impossible for the 
Constitutionalists to give as good protection as in the case 
of the other properties. 



32 



MINING AND SCIENTIFIC PRESS 



July i. 19H 



JPEIRSGMAL 



SOCIETY MEETINGS 



H. K Welch has gone to Alaska. 
C. C. Derby was Id San Francisco. 
s. J. Kinder Is back from Honolulu. 

A. R. I.eihmx has returned from Europe. 

I). W. Bhinton is visiting friends in the East. 

F ('. Alshorf is in Washington examining mines. 

\ G. Ciiarleton left London for Norway on June 27. 

C. W. MERRILL has gone to Lake Tahoe for the month. 

CHARLES F. Rand has returned to New York from Cuba. 

Thomas T Read is visiting the Lake Superior copper mines. 

Theodore I. Hoover has returned to London from Burma. 

JOHN C. RaxbtOS has been in New York for the last few 
weeks. 

C. C. Broadwater was in New York last week, returning 
from Europe. 

F. .7. Basedow was in San Francisco going from Ray to 
Salt I.ake City. 

.1. A. Holmes will be at Fort Bayard, New Mexico, for the 
next few months. 

J. E. Spi'rr examined the Tonopah Mining Co.'s property 
In Nevada last week, 

Marshall Draper, who has been examining mines at Nevada 
City was in San Francisco. 

Walter H. Weed is in Butte, testifying as expert witness 
in the Anaconda-Pilot Butte lawsuit. 

B. J. Padshah and C. P. Peris, who were in San Francisco 
Inst week, have sailed for the Orient. 

C. A. Brows and J. A. Holmes. Jr. are taking motion 
pictures of striking mining and metallurgical scenes through 
the western states for the TJ. S. Bureau of Mines. 

('. M. Means, of Pittsburgh, has been appointed consulting 
electric engineer with the U. S. Bureau of Mines. 

Harry R. Johnson. W. R. Calvert, Ralph Arnold, and' 
Leon J. Pepperbebg are among the oil experts at Calgary, 
Alberta. 

Kih.au Riikakii has been elected president of the Mining 
and Metallurgical Club of London. H. Livingstone Silman 
is vice-president, and SIDNEY H. Farrar. treasurer. 

W. G. Carpenter has resigned from the Goldfleld Consoli- 
dated mill staff and has accepted a position with the Syndi- 
cate Mining Co., Aroroy, Masbate, Philippine Islands. 

Albert Burch will have the management of the Aurora 
Consolidated property as well as the Goldfleld Consolidated 
Mines Co., now that the Goldfleld Consolidated has acquired 
control. 

Arthur L. Walker has been visiting metallurgical plants 
in Michigan and Montana and will sail on July 9 from Van- 
couver for a holiday visit to Japan and China, returning by 
way of Sue/. 

LUDW1G tin in has had the title of 'professor' conferred on 
him by the Prussian government, in recognition of his six- 
teen years' work In advancing the metallurgy of gold and 
silver, through the use of tube-mills and other apparatus. 

H. W. Hardinoe left New York on June 22 for the Cobalt. 

' 'i tie. and British Columbia districts of Canada, and 

Alaska. In returning he will visit most of the Western 

mining states. Mr. Hardinge will be gone until about the 

>nd week in August. 

Karl Bebnson, construction engineer for the General 
Electric company of Salt Lake City, has gone to Miami, Ari- 
zona, to superintend the installation of new equipment in 
the mills of the Inspiration Consolidated Copper Co. and the 
Miami Copper Co. He will later go to Superior, Arizona, to 
superintend the startins of the new mill of the Magma Min- 
company. 



JULY 
Northern California and Southern Oregon Mining Con- 
gress, Ashland, Oregon 9-10 

AUGUST 

American Institute of Mining Engineers, Salt Lake City 1014 

British Association, Adelaide, South Australia 8 

Canadian Mining Institute, Rocky Mountain branch, 

Banff. 

Lake Superior Mining Institute. Marquette. Michigan.. 17 

SEPTEMBER 

American Chemical Society, Montreal 15-18 

American Institute of Electrical Engineers not fixed 

Colorado Scientific Society, Denver 3 

OCTOBER 

American Institute of Electrical Engineers 9 

American Iron and Steel Institute 2:1-24 

Colorado Scientific Society, Denver 3 

NOVEMBER 

American Institute of Electrical Engineers 13 

Colorado Scientific Society, Denver 7 

DECEMBER 

American Institute of Electrical Engineers 11 

American Museum of Safety 11-20 

American Society of Mechanical Engineers 7-8 




The University or North Dakota Quarterly ,l<rurna\ con- 
tains a good deal of interesting reading matter in its 70 pages. 

Massachusetts Institute or Technology has published a 
bulletin giving names of graduates of the class of 1914. and 
titles of theses written by them. 

The COLORADO SCHOOL OF Mines has issued its Quarterly, and 
also a book of views of this institution at Golden. The publi 
cation deals with the college calendar, the faculty, description 
of the school and plant, and courses given. The summer 
school lasts from July 20 to August 29. and the first semester 
of 1914-15 starts on September 8. 

Old Fbejbebgebs in America met in New Y'ork City on June 
13 in honor of Dr. Friedrich Kolbeck, rector of the Freiberg 
Bergakademie, Saxony, Germany. Dr. Kolbeck came to this 
country to represent the Royal Mining School at the fiftieth 
anniversary of the School of Mines, of Columbia University. 
Dr. Kolbeck said that as he had come over to help celebrate 
this anniversary he hoped to see a number of former students 
of Freiberg back to celebrate the one hundred and fiftieth 
anniversary of the Bergakademie in 1916. 

The Institution of Mining Engineers held its meeting in 
London on June 4 and 5. It was the twenty-fifth anniversary 
of the federation of the seven constituent institutions, namely. 
Manchester Geological and Mining Society, North of England 
Institute of Mining and Mechanical Engineers, Midland In- 
stitute of Mining, Civil and Mechanical Engineers, South 
Staffordshire and Warwickshire Institute of Mining Engineers, 
Midland Counties Institution of Engineers, North Stafford- 
shire Institute of Mining and Mechanical Engineers, and the 
Mining Institute of Scotland. The total membership is 3338. 
The president. Sir William Garforth. who received the medal 
of the Institution, stated that the Duke of Northumberland 
wn; the president-el • ■■ 



.lnU 4 1'iH 



MINIM. AND S( II N I II K I'KI SS 






THE MARKET PLAC 



11..U1/ Summary ../ Prion -t Hharei and I/, mi. 



Stocks airad Bounds 



• n iiiimimii stock • MD mrm 

iSitn Krsn male > 

June 39. 



in iSPS 



1 Oil 

N;»Lmiv» Con 
DnlUlrd. 

I lvir..lfuin h« 



lll.l 






diluted. 
Natomai I loaao] 

1 1. Oamant *»».. 
Santa crui OSmentfla. 
Union oil 



Bid 
ftnnid»iii»iii nil 

Aaocl«te<t i HI 

I'u Pont, I'M -" 

(1 Willi — 

Pac 4>n. Bor«\. cm — 

ntiiiiiii a* d — 

Dotal on 



ST".'KS 
A»k 



lll.l 
1 
100 

m 
m 

Hid 



Listed. 

U'nl i on«i. I'M 

Unlisted. 

84 Genofoj Pntrolenm i 

HI) Noble Klretrlr Blwl .. "c 

■v?) Pao. Port- Cement so 

l| Riverside Cement _, — 

Santa Cms Cement — 

Stand. Port. Cement... — 
>K> Mi » STOCKS 
iftv eourteas of San Pranolecc Stock Exchange.) 
June 30. 
Atlanta. * .U 

Belcher J7 

Belmont 

fon. Virginia _ .1* 

Klorence .40 

UoldncM Con ..... 140 

Goldllil.l "r., OS 

Halifax IB 

Jim Butler .97 

Jumbo Kxlcntdon .31 

ilaoNamata 01 

Mexican .52 

Midway .21 

Ml/pah Extension £1 



A.k 

IV 



W( 



Auk 
IIS) 



I8| 



Montana- 1 .-1 t"l 'ili 

Nevada Hills 

North Star 

Ophlr 

Pittsburg Silver Peak 
Hound Mountain 

sierra Nevada 

Tonopah Extension .... 

Tonopah Merger 

Tonopah or Nevada .... 

I'nlon 

Victor 

West End 

Yellow Jacket 



. ..I 
.. .82 

.27 
.. .17 
. .'i'. 
... .35 
.. .10 
.. 2.50 
.. .42 
.. 7.00 
.. .10 
.. .38 
.. .63 
.. .35 



CALIFORNIA STOCKS 

(Latest Quotations.) 
Bid. Ask. 



Argonaut $::..".» 

Brunswick Con.... 1.60 

Bunker Hill 1.90 

, Bureka 0.12 



0.18 



Bid 

Kennedy 

Mountain King 

South Bureka ... - 10 



Ask, 
0.60 



KIITER SHARKS — BOSTON 

(B: >■ ■■■ 01 J. C Wilson, .Mills Building.) 

July 2. 



Bid \sk 

Alluuez - 30] 10 

Axis. Commercial 4) 4] 

Butte 4 Superior 36) 17) 

Calumet A Arizona 61J 8I| 

calumet iV Heels 40."> 410 

Copper Range 35) 36 

East Butte 0] 1" 

Franklin 4 4J 

Granny 78) 7'.<) 

Greene Cananea 30 30) 

Isle Royale ItJfi 20 

Mass copper 4) 4) 

Mohawk 4:1) 45 



Hid 

Nevada Con $ IS) 

North Butte i">l 

Old Dominion 48 

Osceola 7fi 

(Julncy 56) 

Shannon 5 

Superior * Boston I] 

Tamarack 34) 

United Verde 80 

U S. Smelting, com 33] 

Ctah Con .'. 1» 

Winona 3) 

Wolverine 40 



NEW YORK STOCK EXCHANGE 

(By courtesy of J. C. Wilson. Mills Building.) 
July 2. 



Bid Ask 

Amalgamated 8 891 89] 

Anaconda 31) 31J 

A. S. & R., com 62J 62] 

Calif. Pet., com 18] 19] 

Chlno 40| 401 

Guggenheim Ex . 53 04 

Inspiration 17) 1"; 

Mexican Pet., com 59] 81 



Bid 

Miami 8 21) 

Nevada Con „ lag 



Quicksilver, com... 

Ray Con 

Tenn. Copper 

U. S. Steel, pfd 

U.S. Steel.com ... 
Utah copper 



1 
20j 
33 
109 
61) 
68) 



25) 

48) 
78 
58 



35 

85 

m 



Ask 
22 
14 
o 
21 
33| 

109) 
61) 
58! 



M « * Ultl. 1 1 llll 1)1 III II IOSJI 

i ii hi. ,n n Co, i...' 

Jllll 



it c Coppi 
Flral Natli 



in.) 
IK 



IKCI ..17 



Iron Blossom 
Kerr l^nke 

Iji It.. 

\ - nll, >■ 



1'. 
1". 



Ask. 

IVi 

«4 

la 
14 

14 

3 • 



Bid 

Nlplsslm 

oppi . 

SImm. I I III .,! •'.,; 



Tn Bullion 

Tuolumni 

United Cop. 

Yukon Qold 



> 
S 



i iimiii> in OTATIONs 

bis, through n. urlesy of BJoIllsler. Lyon .^ 9 

N'.-w York I 
July 2. 



Alaska m« iioan i 

Alaska Treadwell 8 

Alaska Inn., I :l 

Arizona 1 

Camp Bird 

Cobalt Townsin- i 

i 1 1 in o 

Baperansa o 

Granville 

Kern River oilfields 



i; 


a 



ii 

:t 
» 


9 


8 


Mexican Kftul. 


1 
t 






l 


pi 







s 


Paclilc iillrleld- . 





" 


RIoTlnto 


88 


18 
18 






• 


10 




7 







. d. 

• 

r, o 

e 

10 II 

i n 

7 8 



San Francisco Is not a primary market for the COI 
metals except quicksilver. The prices quoted below therefore 
represent sales of small lots and are not such as an ore pro- 
ducer could expect to realize. Ore contracts usually call for 
settlement on the basis of Eastern prices, less freight and 
treatment charges. The prices quoted are In cents per pound, 
except In the case of quicksilver, which Is quoted in dollars per 
flask of 75 pounds. 

LOCAL METAL PRICES 

San Ft' is'.«,, .Inly 2. 

Antimony 9 — :i \ c 

Electrolytic copper 13 — 154c 

PIS Lead 4.15— 5.10 

Quicksilver (flask) $38.50 

Tin 39 —4014c 

.Spelter 84 

Zinc dust, 100 kg. zinc-lined cases. 7 4 to 8c. per pound. 

EASTERN METAL MARKET 

(By wire from New York.) 
MEW YORK. July 2. — As mentioned In the 'New York Metal 
Market Review' of this issue, repeated statements as to the 
depressed condition of the markets become monotonous, yet 
metals remain practically at the same price. Copper Is firmer, 
with more business doing, giving better tone. June exports 
totaled 35,182 tons against 27.808 tons in June 1913. Granby's 
May yield was 1.669,334 lb. Calumet & Hecla has paid a divi- 
dend of $5, and Tennessee Copper 75c. per share. In the suit 
of Sidney Norman, representing minority Interests of the Fed- 
eral Mining & Smelting Co. v. the American Smelting & Re- 
fining Co., the New York Supreme Court gave its decision 
against the plaintiff. Lead and spelter are quiet. In St. Louis 
these metals are weaker at 3.37 4 and 4.45c. respectively. Bar 
silver in London Is steady at 264d. (62,26c). 

SILVER 

Below are given the average New York quotations In cents 
per ounce, of fine silver. 



Date. 

June 25 56.37 

" 2C, .',6.75 

" 21 56.50 

2S Sunday 

" 29 56.62 

.10 56.50 

July 1 56.75 



Average week ending 

May 20 68.81 

" 27 6T.12 

June 8 68.62 

" 10 56.4 R 

" 17 58.66 

" 21 56 " 

July 1 56.: 



:;4 



MINING AND SCIENTIFIC PRESS 



July 4. 1!M4 



63 01 

Fell 81.36 

Hi 87.87 

.. 

May 60.21 





Monthly av 
1914. 



58 21 



1913. 



Julv 58.70 

" ■ 

Sept. 60.53 

60.88 

Nov 58.76 

Dec 57.73 



COPPER 

' -tlons on copper as published In this column represent 
average wholesale transactions on the New York market and 
refer to electrolytic copper. Lake copper commands normally 
1-5 to l-4c. per lb. more. Prices are In cents per pound. 



Date. 

13. 3.". 

-■ 



2* Sunday 

!.: 26 
13.211 

Monthly 



Average week ending 
10 14.00 

" 27 13. 9S 

18.86 

i» 13.::. 

•• it 13. r,:, 

" 21 

July l 



Men 

Apr 

May 



16.54 
. 1 1.98 
. 1 1.72 

. 16.42 



Tun.- 11.71 



191 I. 
14.21 
l l 16 
11.11 
14.19 
13.97 
13 BO 



1913. 
July 14.11 



Auk. 
Sept 
Oct 
Nov. 
Dee. 



Lead Is quoted In cents 
pounds, \i u v.. ik delivery 

I urn- 2.'. 



i i: id 

por pound 



.15.42 
. .16.23 
. .16.31 

..14.36 



or dollars per hundred 



inday 



1 



Jan. 

Feb. 

Apr 

May 

I on. 



1 9 1 a 

1.38 

i 56 



3.90 
3.90 
3.90 



. , 8.90 
Monthl; 

191 I 
1 1 1 
1 03 

S.86 
3.90 
8.90 



Average week ending 

May 2" 

" 27 3.99 

June 3 8.90 

" 10 : '"■ 

" 17 3.9" 

" 21 

Julv 1 : 90 

averages. 

1913 I9it. 

luly 4.3.'. 



Auk. 

Sept 

Nov 
I iec. 



4.60 

4.37 
I IC 
1 02 



III l< KSII.VIOH 
primary market for quicksilver Is Sun Francisco, Call- 
being the largest producer. The price Is fixed In the 
Open market, and. as quoted weekly In this column, is that at 
which mod. rate quantities are sold. Buyers by the carload can 
usually obtain a slight reduction, and those wanting but a Bask 
or two must expect to pay a slightly higher price. Average 
weekly and monthly quotations, in dollars per flask of 75 lb., 
ven below: 

Week ending j June 1* 38.50 

4 39.00 " 25 

" 11 38.50 I July 2 

Monthly averages. 



II 



1913. 1914. 

.Ian 39.37 39.25 

Feb 41.00 39.00 

Mch, .10.20 39.00 

Apr 41.00 38.90 

May 40.25 39.00 

June 11.1)0 



1913. 

Julv 41.011 

Aug 40.50 

Sept 39.70 

Oct 39.37 

Nov 39.411 

Dec 40.00 



19 11. 



ZINC 
Zinc 18 quoted as spelter, standard "Western brands, St. 



delivery, in cents per pound. 
Date 

3 an.- L' r. 4.7 

" 20 17 



28 Sunday 



10 

l . 



Average week > ndlng 





1.95 

.... 4.90 


10 


4.88 




4.86 

4.75 





1913. 

6. 88 

6.13 


Monthly 
191 1. 

.'..14 
5 22 
5ll2 
1 . 9 v 
4 91 
1.84 


averages 

Julv 


1913 
5.11 


Feu 




5.51 


Mch 


Sept 

Oct 


. . 6.55 






5.22 



TIN 

New York prices control in the American market for tin. since 
tlie metal Is almost entirely imported. San Francisco quotations 
average abotit 5c. per lb. higher. Below are given average 
monthly Now York quotations. In cents per pound: 

Monthly averages. 



1913. 1914. 

Jan 50.45 37.85 

Feb 49.07 39.76 

Mch 46.95 38.10 

Apr 49.00 36.10 

Mav 49.10 33.29 

47. I" 30 72 



1913. 

Jul* 40.70 

Aug 41.75 

Sept 42.45 

Oct 40.61 

Nov 39.77 

Bee 37.57 



1914 



Mew York Medal Review 



Continued reports of the depressed state of tlie metal trade 
become monotonous, but the truth permits no deviation to 
the side of more cheerful reports ai present. One deduction 
that augurs well for the future, however, is the unquestion- 
able (act that stoOks of all sorts are in a depleted state, and 
any revival of business, especially in the metal-working 
trades, must •he fell without delay by the producers and 
sellers of raw materials. The freight rate decision, now 
expected dally, will help in this direction: but of greater 
force yet is the fact that this great country is constantly 
wearing out enormous quantities of finished products, and 
these must be replaced. There is a limit to the patching 
which can he done. Prices may have to be kept lower than 
is desirable, in order to ward off too great an influx of 
for. ign-made i.'nocls. bul the 1'nited States is going to keep 
on making the bulk of what it uses, the production of which 
must support its people. June brought lower prices in cop- 
per, i in. spelter, and the products in which these materials 
enter. It has been a quiet month all around. Lead has 
been dull but steady. Tin is exceptionally low. and buying 
U only from hand to mouth.' Of antimony there is an over- 
sufficiency in stock. Aluminum is unchanged. 

COPPER 

If evidence were needed as to the present dullness and 
low prices of the metals it might be supplied by an announce- 
ment made on June 15 by the Ansonia Brass and Copper 
Branch of the American Brass Co., wherein it was stated: 
"In view of the decline in the prices of raw materials, we 
beg in withdraw all prices on brass and bronze sheet, wire. 
rods, brazed tubing, angles, and channels, and to submit 
herewith a new schedule taking effect on all orders received 
June 15, 1914, and after." The new schedule indicated that 
sheet copper was reduced ' i c. to lflc. per lb. base, and that 
there were reductions of %c. per lb. on sheet brass to 15V<,c.; 
brass wire to 14 7 ic. and brass rods to 14 T ic. per lb. base. 
Copper wire in carload lots, mill shipments, was at t lie 
same lime reduced lo 15' ic per lb. base. Between June i 
ami 85, 1 lie copper market declined about '_.c. per lb., and 
the dullness was without relief. The quotation for electro- 
lytic on June 1 was 14.12'.,c. cash New York, while on June 
Li II was 13.62%C. cash New York, with a tendency toward 
slill lower prices. Of course, there was some business dur- 
ing this period, but it was mostly In small lots for prompt 
shipment to meet current requirements. Consumption Is esti- 
mated as being between 60 and 70% of normal. In the firsi 
day or two of the month the offerings at substantial con- 
cessions outnumbered the takers, with second hands, rather 
than the producers, pressing for business. European buying 
slackened up considerably, although exports against old 
transactions kept up well, those for May having totaled 
in. 771 tons. The June exports, up to the 27th. amounted to 
29.3SS tons. The May report of the Copper Producers' Asso- 
ciation, out June S, showing that stocks had increased 14,005,- 
640 lb., was construed as unfavorable, and the electrolytic 
market at once dropped hi,c. In this instance, and again 
later in the month, the producers did not publicly announce 
a reduction, but the price came down, nevertheless. Toward 
the end of the month the market could only be described 
as stagnant, buyers showing no interest, and there being 
no pressure to sell on the part of either producers or second- 
hands. Prime Lake shared the decline, though it did not 
come down in proportion to electrolytic. On June 1 it was 
quoted at 14.S7^c, while 24 days later it could have been 
had at 14.1217.C. cash New York. Inferior grades of Lake 
were to be had at 14e. and lower. Early in the month, prime 
Lake was sold at 14.25c and other grades not regarded as 
prime, at a shade under 1 1c. 






Jul) 4 l'H 4 



MINING \SD si || sin |, |. K | SS 






III III.- I : 

• r the Hoard ol Trade returns. In the (\n>l flv.- 

gnparad wnii 

\i. 

SUIUI op lh. Ira. I market In June. 

\. » Vi.ik niul ::■>".- Si LouK 
• ii. I of ill.- 111..111I1 ihf imiiiu.. iru Ix 

I, uii.i th*j . ..11. pl.t 1 ii. .1 ..( Hi.- ia. 1, i.r Bitten 
lun at the and ol M»> ■ wag rtpo rt nd, a N.w 

tn 11.11ni1i1.il maker taking 1 toni .■" ■ basis ol 

•1. in. f. 1 Barlj in tun.- tiler* wan reports thai In- 

1 Kiir..|..- im.l i.-Hiiii.-.i in sales, inn Hi., business 

..mid noi he trai It) Hi.- iiiil.-i. then was little <>r 

no di«i>oeiiii>ii la leaa, ami the market was in nil 

BPBL.TER 

Whiii the requaal for s|*-it.-r was quiet, then waa promise 
ol a better demand (mm the sheet mills, which toward the 
end of the month began to Fee] a disposition on the pari o( 
their enatomen i» bnj sheets for the third quarter. Thin 
was offset, however, by the prospect "( trouble between the 
>h.^-i mills and their employee* over the wage scale tor nexl 
-..-.ir a conference which was held al Atlantic City illil no) 
bring an* agreement between them, and the situation was 
left with the possibility of a shut-down of about 22' : of the 
sheet mill capacity of the country unless Further conference 
-ml. Until mill- the last of the month, quotations 
unchanged al 5.10c N.w fork ami 4.95c. St. Louis, 
ih.'D five j.oinis were lost, making the price 5.06c New York 

and 4.1 si. I. .mis. Ol course, the metal was adversely 

affected by the sla.-k business of the brass mills. 

TIN 

The market ranged between 30 ami 81c. from June 1 to 
June 27, witb buying llghl at all times. Nearly all of 
Bucta activity as prevailed was in comparatively small lots 
for prompt or very early delivery, an evidence of the de- 
pleted stat.* 01 consumers' stocks. Deliveries continued good. 
principally because ol the large consumption of Hie tin-plate 
mills. In May. deliveries totaled 3800 tons. On June 1'. the 
London price dropped £5, causing a break lure of over '_.e.. 
and about ISO tons changed hands as a r.-sull. The London 
market at this time was in a more or less demoralized state, 
because of a lack of support which left it at the mercy of the 
liears. In New York, conditions were not pleasing either, as 
some of the metal taken June 1 by consumers under con- 
tract, had cost them -inc.. while the quotation on that day 
was 31.25c, and the next day it dropped to 30.45c It was 
noted that dealers lost no time in making deliveries on such 
contracts. Abroad, the unsatisfactory condition was 
attributed to the world supply statistics, the shipments from 
the Straits having been 788 tons larger in .May than those 
of the same month last year. In five months of this year 
the Straits shipments were 1774 tons greater than those of 
the same months in 1913. The middle of June brought no 
betterment, either in the number or character of sales, anil 
a serious development at this time was a failure to take cer- 
tain deliveries against an old contract. On June 16 there 
was a sale, under the rule, on the floor of the New York 
Metal Exchange of 25 tons, ex-steamer Atholl, which brought 
29.50c, the lowest price in years. Spot supplies were closely 
concentrated. As the month drew near its close, consumers 
seemed to have but little faith in the market, were showing 
no interest in futures, and all sides seemed to be awaiting 
developments. The arrivals in June, up to the 27th, 
totaled 3200 tons, and there was afloat 2308 tons. In five 
months of this year deliveries decreased 450 tons as com- 
pared with the same time last year. The total visible world 
supply June 1, was 17,862 tons, as compared with 13.710 



'""* ' idon .1. 

\\ 1 MONT 

1 hi 

in bond, lune I, wen reporti 1, . .. 

lb. on Hi.- mm . 

■mounts cannot 1 mpared, bo on that 

mpendlng ami nil the 
wai carried In bond, wbereaa Don .. graai si 
stored In private wanl With but sikhi changsa the 

1,. lb, wing prices ruled th e.h Hi.- 1 ill Map 

to 7c; Cookaon'a, 7.12 1 .. to 7 20c : ,i,.i other grades 
r pound 



Cmunremft Prices for 



.«» 



(Corrected monthly by Standard 
ah prluea are f.o.b. Ban Irranolaoo except where otherwise 
1 and are subject 10 obange without 1 
lie Mining Peraet Oranlte Mining Per set, 

dlee, cents. Candles. cents 

Ss-M oz.-IOs 8»; C«-lloz-20» 

•s-.ltOS.-S0s 9 6s-l«O7..-40s 10 

IS-14 O1.-40S 9'/i 6s-16o-t.-20» 

Cxtra hard lc. per set higher tnan the above. 
The following prices are for oils (Cnlol) In w.....i barrels: 
(2-5 gal.) 8c per gallon bin! 

Per gal.. Per gal., 

cents. c.-nts. 

Compressor oil 40 Light gas engine oil ill 

Amber gas engine oil 40 Red compressor oil 2fi 

Castor machine oil 20 lied engine oil 17 

Dynamo and motor oil.... 21 Turbine oil 35 

Knglne oil 24 Turbine oil. heavy 

Gns engine oil 26 Diesel engine oil 40 

Heavy gas engine oil 45 Cylinder oil 37 

Heavy red engine oil 19 High-pressure cylinder oil, 50 

Heavy red Journal oil 21 Low-pressure cylinder oil. 37 

Ice machine oil 28 Valve oil 50 

The following prices are for oils In Iron barrels, cases (2-5 
gal.) 7c. per gallon higher, e> :ept on Eocene, which Is 8c, per 
gallon higher. » 

Per gal.. Per gal., 

cents. cents 

Pearl oil 9 R.-.l Crown gasoline 14% 

Headlight oil 10 Engine distillate 7 

Eocene oil 11 Aroturps 23 

Per bbl. 
Star fuel oil, r.o.b. Richmond Refinery J1.00 

Per ton. 

Petrolastl ment X 112.00 

Petrolastlc cement XX 11.00 

Asphaltum 85.50 to 12.00 



Cwreinift Prices for Ores andl Minerals 

(Corrected monthly by Atkins. Kroll & Co.) 

The prices are approximate, subject to fluctuation, and to 
variation according to quantity, quality, and delivery required. 

They are quoted, except as noted, t.o.b. San Francisco, liuylng 
prlceB marked •. 

.Mm. Max. 

Antimony ore. 50ft, per ton °$is.0n $20.00 

Arsenic, white, refined, per lb 0.08 0.04 

Arsenic, red, refined, per lb 0.08 0.OS v. 

Asbestos, chrysotlle '.00.00 350.00 

Asbestos, amphibole 5.00 10. on 

Asphaltum, refined, per ton 11.50 20. on 

Barium chloride, commercial, per ton 40.00 18.60 

Barium sulphate (barytes), prepared, per ton. 20.00 30.00 

Bismuth ore, 16%, per ton "250.00 upward 

China clay, English, levigated, per ton 15.00 20.00 

Chrome ore, according to quality, per ton 10.00 12.50 

Cobalt metal, refined, f. o. b. Ixmdon, per lh.. 2.50 .... 

Coke, foundry, per 2240 lb 12.00 15.00 

Diamonds (according to size and quality): 

Borts, per carat 2.00 15.00 

Carbons, per carat 55.00 SO. 00 

Feldspar, per ton 5.00 25.00 

I-'irebrlck: 

Silica, per M 50.09 55.00 



3fi 



MINING AND SCIENTIFIC PRESS 



July -t 1914 



Snowball, per M t 15.00 

Film pebbles Mr tube-mills, Danlati, pel 

II) 21.50 22.50 

Fluorspar, per ton 10.00 

Pollen earth, according to quality, per ton... 20.00 

• llftonltc. per t-<n :S5.00 10.00 

ttaapblte: 

Amorpl s, i"' lb 0.01 '~ 

I'rj-scillin.-, per lb 0.04 0.19 

Gypaum, per ton 7.r,s 10.00 

Infusorial .-url'i. per ton 10.00 1 

Iridium 5S.O0 .... 

MriKne.M B.OO 7.50 

IfagaeaUe, dead calcined, per tori 20.00 

Siangan per ion 10.00 

Manganese, prepared, according to quality. 

Pit Ion 30.00 70.00 

Mica, according tr, size and quality, pei lb . 0.05 1.00 

Molybdenite. 953 M.,s.. per ton 750.00 1000.00 

Monaatte sand 1" ton 150.00 200.00 

Nickel metal, refined, per lb 0.46 0.60 

Ocbre, extra strength, levigated, per 100 lb... 1.6O 2.00 

Oamliidlum, per oz 25.00 .... 

Platinum, native, os 30.00 45.00 

Sllox llnlni; for tube-mills, per 2210 lb 35.00 16.00 

Sulphur, crude, per ton 15.00 

Talc, preparei - to quality, per ton.. 20.00 ' 

Tin ore, 60%, per ton 125.00 1 

Tungst 100.00 125.00 

Uranium or.-. 10', inin 25.00 per unit 

Vanadium ore, 1'', v.... per ton 150.00 180.00 

Wolframite (see tungsten ore 1. 

Zinc ore. 50' ton "15.00 20.00 



eiraancalls 



(Corrected monthly by Braun-Knecht-Helroann 1 

or ordinary quantities In packa>; 
specified, For round lots lower prices may be expected, while 
In smaller quantll are ordinarily charged. 

f.o.b. San Francisco and subject to fluctuation. 
Other conditions govern Mexican and foreign business. 

.Max. 

\. Id sulphuric, i'I 66 . drums, per 100 lb.. I 0.80 t 1.10 

Acid, sulphuric com'L 66°, oarboy, per 100 lb 1.75 

Acid, sulphuric, C, P., B-lb. bottle, bbL, per lb. 6.13 6.16 

ulphurlc, '■ P., bulk, 1 lb.... o.osvi 

Acid, muriatic, 1. carboy, per 100 lb 1 60 1.06 

■ 1 1 muriatic, C. P., 6-lb. bottle. bbL, per lb... " 1 ■'• 0.S6 

Acid, muriatic, C. P., bulk, carboy, per lb 11.1014 

Acid, nitric, com'l, carboy, per 100 lb 5.50 

Add, nitric C. P.. 7-lb. bottle, bbL, per lb.... 0.16 

Acid, nitric, C. P., bulk, ci rbo per lb" 0.12VS 6.16 

Argols, ground, bbL, per li> 6.10 0.20 

Borax, eryst and cone, bags, per 100 lb 

Borax, eryst. and cone., baps, per 100 lb ! 1.85 

powdered, bbL, per 100 lb 1.50 

Borax glass, gd. 30 aes, tin lined, per 

lb lo.r.o 18 50 

lb, 60 i" 80 mesh, bbL, per 100 11, 6.50 6.50 

Bromine, 1-lb. bottle, per lb 0.65 6.65 

Clay, domestic Are, sack, per 100 lb 1.50 2.00 

Cyanide, 98 to 100%, 100-lb, case, per lb 0.18 0.22 

Cyanldi 9 ti 100%, 200-lb. case, peril, 0.18 0.22 

Cyanide, 129%, 100-lb. case, per lb 0.22 0.26 M 

Cyanide, 129%, 200-lb. ease, per lb 6.22 0.26 

Lead acetate, brown broken, oasks, per 100 lb. 9.00 10.60 

Lead acetate, white broken, casks, per 100 lb.. 10.50 10.76 

Lead acetate, brown broken, .asks, per 1"" lb. 9.60 16.50 

acetate white, crystals per 100 lb 12. 50 18.26 

C. P., test., man., per 100 lb 18.00 16.00 

Lead, C. P., sheet, per 100 lb 15.00 I 8.00 

Litharge, C. P., silver free, per 100 lb 11.50 

Litharge, com'l. per 106 lb B.00 9.50 

Manganese ox., blk.. dom. In bags, per ton.... 20.00 25.00 
Manganese ox., blk., Caucasian, In casks, per 

ton (S5ci MnCV- »i c^ Fe) .•;.-„„ .-,n.00 

Nitre, double refd, small eryst., bbl., per 106 lb, 7.00 8.00 

Nitre, double refd. granular, bbl., per 100 lb.. 6.50 7.60 

Nitre, double refd, powdered, bbl., per 100 lb. 7.26 B.00 

Potassium bicarbonate, eryst.. per 100 lb 12.00 15.60 

Potassium carbonate, calcined, per 1"" lb 7.60 9.00 

Potassium permanganate, drum, per lb 0.109S 0.13 

Silica, powdered, bags, per lb 0.08 0.06 

"Extra charge for packing nitric acid for shipment to con- 
form to regulations. 



Soda, carbonate (nshi, bbL, per 100 R> 

Soda, bicarbonate, 1,1,1., per ion lb.... 

Soda, caustic, ground. 98 r r bbl . p.r 100 lb. 
Soda, caustic, solid, !'S',. drums, per 100 lb. 

Zinc shavings, 850 line, bbl.. per 100 lb 

Zinc sheet. No. 9 — 18 by 81. drum, per 106 lb 



Mln. 
1.45 


Max 

1 7." 


.',.".'1 


2.-..I 
.: 2". 
B. 7 6 
II 60 


1U.2II 


■ ■ i,i, 



Peftffoleiuunni ProcdlyUicftnomi ©if the 



After nuiUrhe. a complete investigation of litis industry, 
the U. S. Geological Survey has compiled the Following table. 
The totals are oDly 2.5% different from preliminary estimates 
published by the Survey eight days after the close of the 
year 1913. The Survey is the only statistical agency which 
prepares a statement of the value of the crude oil at the 
wells. The principal feature was the gain in value over 
1912, namely. (72,908,141, although the output was ouly 26,511.- 
186 bbl. greater. Every state except Colorado showed an 
im rear- in the value of the oil. 
1912. 
Quantity, Av. price 

State or region. barrels, perbbl. 
Alaska 







$0,454 


Colorado 


206,052 


0.793 




28,601,308 


0.851 


Indiana 


H70.009 


0.918 


Kansas 


1.592.796 




Kentucky 


484,368 


0.877 


Louisiana 


. H.263,439 


0.758 




(') 










New Mexico .'..., 






874,128 


1.604 


Ohio: 






Southeast! 


5,013,110 


1.631 


Lima 


3,955,897 


0.988 


Total Ohio .. . 


. S.969,007 


$1,347 


Oklahoma 


. 51,427,071 


0.674 


Pennsylvania 


7,837,948 


1.644 


Texas: 






Northern 


. 5,275,629 


".7711 


Coastal 


U.459.52S 


0.934 


Total Texas. 


. 11,735,057 


$0,754 


Weal Virginia . . 


. 12,128,962 


1.643 


Wyoming 


. 1,572,306 


0.507 


Other 







1913. 

Quantity. Av. price 

barrels. perbbl. 

(") 
97,764,525 
188,799 
2::.S93,S99 
956,096 
2,375,029 
524,568 
12,498,828 
Ci 
(') 
i'I 
902,211 



$0,467 
0.947 
1.296 
1.337 

0.947 
1.288 
0.981 



.♦i'I 



1.9114.12:, 

::. si 7.114:: 



2.41::: 

1.391 



8.781 ,46s $1,997 

68,579,384 0.937 

7, 963, 282 2.487 



9,184.252 


0.994 


5,825.226 


0.953 


I5.uil9.47s 


$0,978 


11. 567.299 


2.492 


2,406.522 


0.493 


■34,843 





Total U. S. ...222,935,044 $0,737 248,446,230 $0,954 

stMMAKY. 

Appalachian 26,338,516 $1,626 26,921,785 $2.45S 

Lima and Indiana. 4,925,906 0.932 4.773.13S 1.380 

Illinois 2S.601.308 0.851 23,893,899 1.296 

Mld-Contlnenl .... 65,473,345 0.692 84.920,225 0.951 

Gulf 8.545,018 0.742 8,542.494 0.936 

California 87,272,593 0.464 97,764,525 0.467 

Colo, and Wyo 1.77S.358 0.561 2,595,321 0.525 

Other "34,843 1.930 

Total 222.935.044 $0,737 24S.446.23n $0,954 

'Included in 'Other.' 
"Estimated. 

'California production in 1913 subject to revision. 
'Included in Lima. Ohio. 
Includes Michigan. 

"Includes Alaska. Michigan. Missouri, and New Mexico. 
The total values of the respective years was $164,213,247 and 
$237.121,3S8. 



.li.U I. I'M! 



Ml\|\t. II Mil It I'KI SS 



COMPANY REPORTS 



MBIAN minim; * EXPLORATION COMPANY, LTD. 
Thr report "i tiu» Company, operating at Marmato, Colom- 
bia, drala with the > . .1 r ended March 31. 1914 In the Colom 

Maoo mill ot H Win Ctu Pwoa ol U stumps, ami Innerno 
ol 10 iuiuim mow .". owlni it. a ibortag* of water, only 

25.494 Inn- ..( ore was treated, yielding $7 par Inn In Kold. 

A plain 1- Unit erected iu ir.nl tin- »aml. which tvt 

I tun I'll.- value of gold recovered was J _• 4 • t an In- 

I »Vt r 1911 ' ■ In Id.- different mine* 

11nai.1l at I :i;.:'.ii tons a\. iragtag |1m.;,i> par Ion. Good 
progress has 1m-.ii tna.l.- with the tow mill at La Talma It 

consist* of rock-eruahers, 10 stamps, two Dorr classifiers, three 

tnix- iniiN. two Dorr thickeners, six Pateraon agitators, ami 

1" Dahne hiter-prcescs. Labor and trans|iort arrangements 
continued satisfactory. 

ROBIN80N GOLD MINING COMPANY, LTD. 

During January 01 the current year, it waa proposed i" 
amalgamate this Kraal Kami company with the Crown Mines, 
Ltd.. lint shareholders objected to this being done The re- 
port for the >.-ar ended December SI, 1913, contains tin 1..1 
lowing information Owing to tin- gradual reduction in the 

Dumber of stone Faces capable of supplying large quantities 
of the higher-grade ore, the Increased tonnage waa made up 
from development ore From surface dumps, anil .Main •reef. 
This resulted in a fall In yield of $1.90 per ton milled, and a 
decrease In working costs of 88c., with a reduction in working 
profit of $390,000. A small amount of development was don, 
on the lowest levels, .lis. losing good ore in each reef. The 
development of the mine is now practically completed. Ore 
PS are as follows: Leader. 349.000 tons of $10.20 ore 
ov.i a stuping width ol 82 in.: South reef. 189,200 tons of 
♦ ll.l ore over 65 in.: and recoverable from old workings, etc., 
469400 tons. There is also estimated to be in the Main reef. 
772,900 tons of $4..:" ore. Sand-filling of slopes was done for 
about nine months. 

Kesults were as follows: 

1913. 1912. 

Ore mined, tons 700.149 673,058 

Ore from surface dumps, tons 26.734 

Sorting done, per ,-.-ni s.l i:;.s 

Ore milled, tons 668,900 577,300 

Yield per ton $ 8.5S $ 10.48 

Total yield 5.750,000 5,900,000 

Working nroflt 3,500,000 3.940, 0011 

Working cost per Ion 3.38 3.70 

Dividends paid 2.010.000 2.970.000 

Transvaal Government tax on profits 312.000 

Balance unappropriated $2,490,000 

BROKEN HILL PROPRIETARY BLOCK 10 COMPANY, LTD. 
The report of this New South Wales Company covers the 
ball-year ended March 31. 1914. Development totaled 1112 ft. 
At the beginning of the term the management adopted the 
policy of confining all development work to the upper levels, 
from the 015 ft. level upward. No work was done in the 
lower levels, except making necessary repairs, and providing 
an emergency escape from the 1215-ft. level into the neighbor- 
ing Proprietary mine. The main drift at 615 ft. followed the 
ore for about 200 ft. southwest, and it looked as if it would 
connect with the western orebody discovered in the Central 
mine. But it turned almost due east, with the result that at 
"11 It. the ore passed over the boundary of the Central mine 
at a point within a few feet of the Block 10 old main-lode 
workings. Ore reserves are about 22S.900 tons. 



II » mill did good »ork Hi ttv.it) 

yielding 6752 ton* ,,t lead ooBoontrata, M*t«i recovi 

and «ll>, r ti.tr i A total ol 

' bj products, tump tailing, tllmi and mid 

• 1 the total revenue being Hi and Del profll t 

\ dividend ol tin was paid, and the surpi 

duced 11. -to ti-.. to $440,004 I ■ llowa Mine 

ib-vHopin, in attraction Jim. milling, treatment, 

and Iran port, Jilt an. I gl 1 ' H p. r ton 

ST JOHN DHL UKY MINING COMPANY, LTD, 
The eight] third annual r.-port of tin Company, operating 
in iiia/ii. coven tb.- rear ended Februarj 18, 1914, The 

superintendent, 1;. orgs Chalmers 1. nti d as follows ..a the 

woii, .ion,- Tin- average number ol native men and 
employed wi and ol officers and rcngll -mm 

there were 1?" Early in 1912. labor troubli I ind the 

climax waa reached in Beptembei and Oi 913. Efforts 

at recruiting labor in Brazil and other countries wi re nol sue 
easeful. While tin- government was prosperous, ami pal 

tor work being don.-, in. -n kepi awsj rrom tb.- m 
but when 1 tii.b. -r ami coffee prospects were pom, it retrenched, 
ami men returned to tb,- mines. A rise in wage- was 
necessary and increased tin- costs considerably. Among the 

attempts to help tin- labor difficulty was the importation of 

107 Japanese. They arrived on August 30, 1913. They were 

a sturdy lot and well disciplined, and great consideration was 
shown them. But only 40". of tin-in would go underground, 
in spin- oi patience of the mine staff, in October, they Btarted 

to il. sen. and at the end of the Company's year the 107 Japa- 
nese had gone. The experiment was therefore a failure. The 
mini- is a fairly hot one, and this is a reason for nun DOl 
liking to work underground. There were five fatal accidents 
in the mine, mostly due to the mens' own carelessness. The 
general health of Mono wiho was good. The medical 
treated a total of 24.755 patients, most of whom consulted on 
trivial eases. Tuberculosis is on the Increase here and 
throughout Brazil. 

The Mono Velho and Raposos tramway started operation 
on April 5, and handled 14,937 tons of stores, ores, and 32,725 
passengers. It is showing a small profit, but Is generally a 
great convenience. Cost of transport from Honorio Blcalho 
used to be $3.84, but is now reduced to $1.70 per ton. 

At the mine, a total of 2588 ft. of work was done. On- re- 
serves are estimated as 887,400 tons, compared witli Si::.Tss 
tons in the previous term, and are estimated to 122 ft. n 
below last year. No. 18 level Is 5226 ft. below the surface 1902 
ft. below the adit, and 245S ft. below sea-level on the incline. 
Electric locomotives in the adit worked well, and it is pro- 
posed to substitute these for mules in the lower levels. The 
Sirocco Ian is now driven by a 300-hp. motor, increasing the 
volume of air delivered 22C£. Another fan will be installed 
at tin- top of 'G' shaft. Stope-filling for the year amounted 
m 1 :;:,. 37:: tons. 

The stamp-mill crushed 174.000 tons of ore yielding 97,208 
oz. gold, worth £411,508. The recovery by all processes was 
93.13 per cent. 

Costs were as follows: State and Federal government 
duties and transport. 60c.: development, 41c.| working charges 
in Brazil. $7.30: and London expenses, 10c, a total of $8.41 per 
ton. The profit was £115,349. Dividends amounting to 24c. 
per share, or in',, were paid. The balance carried forward 
i- E7196. Investments are worth £96.472. 

Owing to the shortage of labor, development and sampling 
of the extensive iron-ore deposits was suspended. Foreign 
capital has secured all of the other first-class iron land lor a 
radius of many miles from the mine, and the genera] tendency 
of these owners is 'watchful waiting.' 

Brazilian exchange for the Company's drafts averaged 
K.itssd. (32.176c.) per milreis. Mine tempera tit res will be 
discussed in another issue of this journal. 






MINING AND SCIENTIFIC PRESS 



-lulv 4. l!tH 




The F'-iiowim. Data, Covebikc mh Teas L913, is krom hik 
United Si v res Geoi oqii n Si a 

COAL MINING IN MISSOURI 

roductlon in Missouri in 1913 was 4 . :: 1 s . 1 ^ Ti short tons. 

valued at $7,468,808, a decrease compared with 1912 of 20,731 

ion- in quantity and of $165,656 in value. With the exception 

2, however, the output in 1913 was the largest in the 

history ol the state. The number of fatal accidents was re- 

one-half of the fatalities of the preceding year, 

or from 20 to In. according to reports to the Bureau of Mines. 

COAI. MINING IN INDIANA 
production in Indiana in 1913 was 17,166,671 short 
tons, valued at $19,001,881, according to Edward \V. Parker, 
Although this was an increase of 1,879,953 short tons, or 
12.39! over 1912, it fell short of the record output of 1910 by 
more than 1,200,000, tons and was withal far from satisfactory 
to the producers. Floods and a drought interfered with regu- 
lar work. The average value per ton showed a decline from 
$1.14 In 1912 to $1.11 In 1913. The total value of the coal 
mined increased from $17,480,546 to $19,001,881, a gain of 
$1.521. 335, or B.7%, compared with the increase of 12.39i In 
quantity. 

In -pile ol the adverse conditions which prevailed in 1913, 
labor was in better supply and the number of working days 
made by the employees was greater than in 1912, The total 
number of employees in the coal mines of Indiana increased 
from 21,651 in 1 !> 1 L' to 22.235 in 1913. and the average work- 
ing time from ls2 to 190 days. The average annual pro- 
duction iter man in rom TOO to 772 tons, and the aver- 
age daily production by each man from 3.88 to 4.0fi tons. The 
as due in part to the larger proportion 
of the product being mined by the use <>1 machines, the in- 
in that Item contributing 669! of the total increase, or 
7 ions. The production of machine-mined coal in 
amounted to 9,634,146 short tons, or 569! of the total, 
red with 54.79! In 1912. The number of fatal accidents 
reported to the Bureau of Mines for 1913 was 66, compared 

with 40 in 

METAL PRODUCTION OF TilK EASTERN STATES 
The following table, compiled by H. D. McCaskey. shows the 
output from '.in mines, of which 48 were gold-placer, 9 zinc, 

tend 7 per properties. Of the gold mines. 27 are in Georgia. 

17 in North Carolina, and 4 in South Carolina. Nearly all 
i be copper came from the Ducktown district of eastern 
Tie- zinc mines at Franklin Furnace. New Jersey, 
< i he bulk of that metal : 



Ores 

mined. 

Short 

torts. 

na 4.068 

i 2.614 

New Hampshire 400 

New Jersey 490,434 

North Carolina 11,274 

Pennsylvania and Vermont 239.178 

South Carolina 1,010 

Tennessee 823.645 

Virginia '. 30.916 

Total. 1913 1.603,539 

Total, 1912 1,361,734 



PUMICE 
Pumice produced in the United States In 1913 amounted to 
24,563 short tons, valued at $55,408, a <! 2583 tons in 

quantity and of $31,279 In value compared with 1912. The 
material came from six states, namely, California, Kansas. 
Nebraska. Idaho, South Dakota, and Utah, 

OILSTONE 

The prodiictjpn of oilstones. Including hones and whet- 
stones, and scythe-atones In the United States in 1918 amount- 
ed to $207,352, a decrease of $24,866 compared with 1912, ac- 
cording to Frank .1. Katz of the r. S. Geological Survey. Oil- 
stones were produced In Arkansas, Indiana. Ohio, and Ken- 
tucky, especially in Arkansas, which has led in the production 
for many years. New Hampshire led in the production of 
Bcythestones, but Vermont, Ohio, and Michigan also con- 
tributed Important quotas. 

PORTLAND CEMENT PRODUCTION 

IHiiing 1913, according to final figures collected by Ernest 

F. Bnrchard. the output was 92,097,131 bbl., an increase of 

11.72', compared with 1912. Shipments by states were as fol- 
lows: 

Ship- Average 

ping Quantity, price per 

State. plants. barrels. Value. barrel. 

Pennsylvania 23 28,060,495 $24,268,800 $0,866 

Indiana 5 10,219,492 in.21S.S07 1.000 

California 7 6.01S.262 8,896,734 1.478 

New York 8 .-.130.334 4,801,607 0.985 

Illinois 5 4.731..-4H 4.7-4..;'.'ii 1.011 

Missouri 5 4,486.820 4,556.822 1.016 

N.w Jersey 3 (.255,016 3,638,755 o.sr,:, 

Michigan 11 1.081,961 4.22s,s7:i 1.1130 

Iowa 3 3.455.800 3.072.v7>; 1.150 

Kansas 10 3. 291. sis 3,286,861 0.998 

Texas 4 2.108.737 2,663,063 1.263 

Washington 5 2.02:',. 172 2,853,260 1.410 

Ohio 5 1.631.055 1.721.423 1.056 

Utah 3 950,469 1.233.421 1.298 

Other states* 10 s.237.os7 7.9sn.911 

Total 113 88,689,377 $89,106,975 $1,005 

•Alabama. Arizona. Colorado. Georgia. Kentucky. Maryland, 

Montana. Oklahoma. Tennessee. Virginia, and West Virginia. 
In 1912 there were 117 shipping plants, moving 85,012,556 

bbl. valued at $69,109,800, an average of 81.3c. per barrel. In 

13 states, in the above table, there was an Increase in the 

price of the product. 

Total recovery of useful fuel from waste heaps and culm 
banks, al coal mines in the Tinted States, has amounted to 
19,329,376 tons since 1890. 













Total 


Gold. 


Silver. 

I'm'' 


Copper. 


Lead. 


Zillr. 


value. 


Value. 




Pounds. 


p. .a nda. 


Pounds. 




$ 11.094 
15,108 


117 








$ 11,165 


75 








15,153 










30,000 


1,680 










168.244.000 


9.421.664 


126,448 


1,812 






20.400 


128.685 


3 


105 


517.692 






80.309 


4.881 


40 








4.005 


7.595 


108,105 


19,390,750 


1.632.000 


11.166,000 


3. 703. 752 


604 


960 


56,287 




5.438.000 


386.244 


$165,733 


111.214 


19.964.729 


1.632.000 


184.S98.400 


$13,753,557 


$222,496 


96.523 


19,265,945 


561.020 


144,699,863 


$13,470,276 



1'iU 



MINING WD S< II Mil II I'KI SS 






BOOK REVIEWS 



iw-HIII 
Hook I N Indai For nalv by th« 

if mix t 

um 'n the preparation ol UUi i*>«k u stated by the 

author • i i lif demand* of the copper nictallur 

! Mi ii. •ini. 111 hai succeeded 

In complllii "lunmt of Information on the subject 

■ I .in.i chemical facta 

■ and compounds which are of metallur 

details .tf tilt- older smelter practloe which 

Iher with the modern method* and recent 

■ metallurgy with examples taken from 

the modern American plants are presented In detail. The 

>iiii a discussion i>i the properl ipar, its 

gradi s, impurities and their effects. The Industrial alloys 

i with eutectic curves, and the compounds and 

■ brlefl) treated The author devotee 3in 

■i the smelting of copper in which space the numerous 

■ if the subject are dealt with, special attention being 

■■> the dynamics of copper Bmeltlng. The rams are 

■ with detailed drawings "i Bmelter equipment. 

The leaching of low-grade and flnelj dessemlnated copper 

ores, which has ni recent years come to lie such an important 

forms an Important part of 
the work. A general discussion of the chemistry of the sul> 
followed by descriptions of the various leaching pro- 
wlth apparatus for use in this branch of metallurgy. 
The electrolysis of ore, matte, speise. and metallic copper 
in general i discussed. The current, ceils, and equlpmenl 
for the electrolytic refining of copper form the subject of 
this department of the hook. The bibliography presented is 
an Important asset as the numerous references which are 
given as footnotes cover the literature on the subject and 
are valuable as reference for one caring to go into further 
refinements of the subject. The work is a valuable addition 
to the literal nre on copper metallurgy and is of particular 
Interesi as a text or reference work. 



Cuemu ii. Gebmah. By Francis C. Phillips. The Chemical 
Publish Pennsylvania. P. 211. Notes, vocabu- 

lary. For sale by the Mining ««</ Scientific Press, San Fran- 
cisco. California. Price S2. 

Practical!;, every engineer who. by necessity or inclination. 
casion to make a careful survey of the literature on 
any subject rinds it necessary to read papers appearing in 
German and French, since one or the other of those two lan- 
guages is used not only by their respective nations, but also 
by scientific workers in almost every other European coun- 
try. In the case of French, this involves little difficulty, since 
technical French is lucid and anyone who can read, even 
with some difficulty, an ordinary French novel, finds less 
labor required to comprehend a scientific paper. German, on 
the other hand, presents the reverse characteristics, and an 
engineer who successfully passed the examination in German 
for extrance to his technical school and for whom the Amer- 
ican rathskeller or travel in Germany has no terrors, not 
Infrequently gives up in despair when confronted with the 
necessity of reading an article written in technical German. 
Many of the words used in such an article are not to be 
found in any ordinary dictionary, or if they appear their 
technical meanings do not. The German method of naming 
compounds is also puzzling: thus Zweifachschwefeleisen 
(FeS.) and Zyanwasserstoffsaure (hydrocyanic acid) are not 
a* once recognizable. Superimposed on these difficulties Is 
the controversy raging in Germany between the advocates of 



simplified ipelilm and 

Mr Phillips, Wl ■ mlmrv 

in Hi.- Unlvei Jtj ..i Pittsburgh, ban on ■■ aid of the 

chin, t. ai student blm th* rule,, which govern 

chemical German, an • ■ chemical terms 

an «cii as ordloarj words used in chsm and a series 

ided extracts from chemical literature, suable! him to 
find his «;n through chemical llteraton and to equip himself 

in proce.,1 unaided, A similar guide to ami metal 

lurglcal German is greatly to t> aul pending Its 

appearance tmerlcan students win be great!] aided by this 

volume, for whlcl^ Mr. Phillips deserves and will doubtless 

the thanks "f every plodding research student. 




On. Lease — Ricuir ok Action 
Where an oil lease by Its terms leased the land therein 
described and not merely the right to extract oil therefrom, 
the lessee could maintain an action thereon prior to the dis- 
covery of oil. 

Kline v. Guaranty Oil Co. (California), 140 Pacific, 1. March 
25, 1014. 



Cobpobation Liable fob Violation of Stati n 

Those In charge of a mine for a corporation must see that 
the statute against mining within five feet of a division line 
Is observed, otherwise the corporation is Itself liable for the 
penalty. The neglect, mistake, or disobedience of its serv- 
ants in this particular will not excuse It. 

Gawthrop I). Fairmont Coal Co. (West Virginia!, SI South- 
eastern. r.fiO. April 7, 1914. 

Coal Lease — Implied Covenants 
A lease of "all coal and mineral rights and privileges what- 
soever, contained on, in and beneath the surface", of certain 
described land, for a period of ninety-nine years upon a con- 
sideration of royalties, but with no covenants for diligent 
working by the lessee, was held to be a lease upon an Im- 
plied covenant for reasonable diligence on the part of the 
lessee, vesting no estate in the coal until actually mined. 
A lapse of twenty-five years before commencing operations 
was held to warrant a forfeiture. 
Chandler v. French (West Virginia), SI Southeastern. K25. 
May 21, 1914. 



Assignment of Oil Lease — Held Valid 
An oil lease was granted upon condition that a well should 
be commenced within a year, or in lieu thereof $160 paid 
to the lessor. A year elapsed without compliance by the lessee 
with either of these conditions. A new lease was then made 
by the lessor to third parties, who assigned it to the defend- 
ant for a consideration. Before all the consideration was 
paid, the original lessee paid $160 to the lessor. The assignee 
thereupon refused to pay the balance of the consideration 
for the assignment of the new lease, alleging that the old 
lease had been continued in force by the acceptance of the 
delayed payment and that there was a breach of implied 
warranty. Held, that the assignor of the new lease was 
entitled to recover the balance of his consideration, as the 
$160 had not been paid within the year and could not vali- 
date the old lease after the new one became effective. 

Eastern Oil Co. v. Holcomb (Oklahoma I, 212 Federal, 126. 
February 23, 1914. 



40 



MINING AND SCIENTIFIC PRESS 



July 4. liiH 




The Use of Link-Belts 



The detachable link-belt was invented by William D. Ewart 
in 1873, and since that time the original link-belt has been 
manufactured at the Ewart and Belmont works of the Link- 
Belt Company at Indianapolis. Link-belts are adapted to such 
a wide variety of uses and their construction is so well un- 
derstood that the engineer and millman, who has occasion 
to use them, thinks little as to their technology and correct 
application. The two qualities most desired in chain drives 
are, of course, immunity from break-downs and durability, 
both of which call be secured by using the proper belt for 
the working load. The magnitude of this load depends upon 
the speed of the chain and the character of the work which 
the chain is to perform. 

In transmitting power the engagement of each chain link 
with the tooth of the sprocket wheel is attended by a cer- 
tain degree of shock, and as this is multipled and intensified 
as the speed is increased, the working load of the chain 
should be reduced in a compensating ratio. 

As the result of numerous and carefully conducted series 
of tests, the Link-Belt Co. recommends that the working 
load of the chain be determined as follows: 

For a speed of 200 ft. per minute and under, divide aver- 
age ultimate strength by 6. 

For a speed of 300 ft. per minute and under, divide aver- 
age ultimate strength by 8. 

For a speed of too ft. per minute and under, divide aver- 
age ultimate strength by 10. 

For a speed of 5<i0 ft. per minute and under, divide aver- 
age ultimate strength by 12. 

For a speed of 600 ft. per minute and under, divide aver- 
age ultimate strength by 16. 

For a speed of 700 ft. per minute and tinder, divide aver- 
age ultimate strength by 20. 

If the load to be transmitted is irregular or subject to 
shock, or if the chain is used in an elevator or conveyor 
handling gritty or coarse material, a still further reduction 
of the working load must be made. The ultimate strength 
of the chains is obtained from the manufacturers' catalogs. 
The horse-power transmitted may be ascertained by multi- 
plying the number of feet the chain travels per minute by 
the working load and dividing the result by 33,000. 

Manganese steel has been adapted for link-belts where spe- 
cial toughness and hardness is required. By special proc- 
esses, mixtures, and heat treatments, it has become possible 
to manufacture smooth and uniform chain links of the vari- 
ous types used for severe work. The characteristics of the 
manganese steel used for link belts are its extreme tough- 
ness, it not being brittle, but so ductile and malleable that 
when overstrained it will stretch and twist out of shape in- 
stead of giving way suddenly. 

In the operation of link-belts it is essential that the 
sprocket wheels are carefully fitted to the chain. It is true 
that cnains will frequently 'run' on sprocket wheels which 
do not fit them, but to insure durability and maximum service 
of both chain and wheel, they must fit. A sprocket wheel 
with hardened face that does not fit the chain may have a 
long life, but at the expense of* the chain. It is necessary, 
therefore, that when sprocket wheels are purchased it be 
insisted upon that they fit a chain of standard pitch. Smooth 
hard bearing surfaces for contact with the links and a care- 
ful fit insure the chain against undue wear. 



A recent publication of the Link-Belt Co., represented on 
the Pacific "oast by the Ely Machinery Co. of San Francisco, 
entitled Advance Section A' of general catalog No. 110, de- 
scribes in detail the numerous chain belts and sprocket wheels 
manufactured by this Company. 



New Deister Products 

The Deister Machine Co., of Fort Wayne, Indiana, during 
the past year has placed a number of new machines on the 
market, tot; which there is claimed marked advantages over 
the older products. Among these it is claimed that the sim- 
plex double-deck slime concentrator will handle twice, and 
the simplex double-deck sand concentrator four times, the ton- 
nage handled by the respective older type single deck tables. 
The capacity of the six-deck tilting slimer is said to be 
four times that of the old type single-deck slimers. The Com- 
pany states that the multiple-deck machines are no longer 
an experiment, but on the contrary have proved a great suc- 
cess. They have been in continual operation in one of the 
most up-to-date mills in the country for over a year, and 
are so rigidly tied together and mounted that they have given 
no trouble mechanically. In connection with these machines, 
a blueprint is furnished for a stationary pulp distributor 
which provides for an even distribution of feed to the decks. 

Tin Deister Machine Co.'s 'Ideal' headmotion is interchange- 
able and is used on all the latest sand and slime tables manu- 
factured by this Company. Every millman knows that the 
headmotion is the important factor in the operation of a 
concentrator. Simplicity, durability, and efficiency of the 

Ideal' headmotion. it is claimed, has been demonstrated in 
nearly a year's constant operation. During this time, it re- 
quired no attention other than the regular oiling. The prin- 
cipal wearing parts are made of case-hardened steel and run 
submerged in oil. It can be adjusted, while in operation, by 
an adjustable eccentric pin in the rear of the motion. This 
adjustment is independent of the means for adjusting the 
stroke. The Company also equips decks of other types of 
concentrating tables with the patented plateau and rifting 
system, and thereby proposes to increase the capacity of these 
tables without decreasing their efficiency. 



Commercial Paragraphs 



The June number of 'Leschen's Hercules,' the monthly pub- 
lication ol A. Leschek & Sons Rope Co.. contains an interest- 
ing description of the application of flattened strand rope to 
coal mining operations in Utah. 

The Westers Electric Co.. of New York City, has for dis- 
tribution a most interesting publication entitled 'The Mak- 
ing of the Voice Highways.' The publication presents a pic- 
torial review of the history of communication and mode™ 
wire and cable making. The subject-matter is attractively 
presented and of an educational nature. 

An ENORMOUS CONVEYOR belt was recently made in Australia 
by the Dunlop Rubber Co. for the Broken Hill Proprietary com- 
pany. It is ts75 ft. long in seven sections, 36 in. wide, :: t in. 
thick, 6 ply in the centre, 9 ply at the edges, weighs 30.5 tons, 
and is to run at 250 ft. per minute. It will be used in load- 
ing ironstone from the Company's deposits in South Australia 
into vessels for conveyance to Newcastle, New South Wale.-, 
where a large iron and steel plant is being erected. 



July 4. 1-'1» MINING \M) Mil Mil It I'KI ■>- IS 



In November 1909, the House of Lords, England, delivered a unanimous judgment in favor of 
the Minerals Separation, Ltd., in an action brought by the Elmore Process. A similar judgment 
was given July 24, 1911, by the New South Wales Court in an action brought by the same plaintiff. 
The Elmores appealed from the decision of the Australian court in this action and in March 1914 
the Privy Council of the House of Lords decided this appeal overwhelmingly in favor of Mineral 
Separation patents. 

In July 1913. in the United States District Court for Montana, The Minerals Separation 
original process patent was completely upheld. 

The recent decision of the Court of Appeal for the Ninth Circuit, reversing the decision of the 
Montana Court, we regard as a temporary setback only, as it will not be accepted by us as final. 

Minerals Separation, Limited, own nearly thirty patents for the United States, alone, covering 
flotation processes and apparatus, all of which are controlled by the Syndicate. There are also a 
considerable number of applications pending. These patents and applications cover practically 
everything of value in the art, and include those of fundamental importance. 

The Minerals Separation 
Flotation Process 

Is a General Method of Separating Sulphide Minerals from Gangue 

The application of this method is being extended constantly to cover separations hitherto 
considered impracticable. The newer modifications being developed and used have greatly re- 
duced the costs of operation ami at the same time have increased recoveries and grade of concen- 
trate. 

No Mine Owner or Mine Manager Can Afford to Ignore the Developments 
Which Have Been Made in This Method of Ore Treatment 

At the very least they should state their problems to the Minerals Separation Company and 
get advice as to whether or not the flotation process offers any possibilities in the treatment of 
their ore. 

The Flotation Process 

As Invented, Perfected and Owned by 

MINERALS SEPARATION, LTD. 

has been successful practically everywhere installed, and millions of tons of ore are now being 
annually treated thereby. 

This is the Only Concentration Process Which has No Slime Limit 

Mine owners, metallurgists and others interested in preventing mineral losses and reducing 
the cost of treatment are invited to send their inquiries 

TO 

Minerals Separation American Syndicate (1913), Ltd. 

Sole Agents : Messrs. Beer, Sondheimer & Co., 61 Broadway, New York. 
Chief Engineer: E. H. Nutter, Merchants Exchange Bldg., San Francisco. 



NOTICE is hereby given that no one except our Chief Engineer and the agents named above is authorized 
to act tor or represent Minerals Separation. Ltd.. or to introduce their process or apparatus into the United 
States Canada and Mexico. A testing laboratory is maintained in San Francisco tor the purpose of testing 
ores by flotation, and samples sent to our Chief Engineer there will be tested at minimum expense to pros- 
pective licensees. No tests made by unauthorized persons can be depended upon In determining the amen- 
ability of an ore to Minerals Separation Process. 



16 



MINING AND SCIENTIFIC PRESS 



Julv 4. 1M14 



PROFESSIONAL DIRECTORY 

ENGINEERS, METALLURGISTS AND GEOLOGISTS 

Arranged geographically. For addresses see cards on following pages. 

RATES : One-half inch, $25 per year 148 cents per week). Combination >ate with THE MINING MAGAZINE of London. 
one-half inch In each, $40 per year (77 cents per weeh . Subscription Included. 



ENGINEERS IN THE UNITED STATES 



ALABAMA. 

Dodge, W. R 



ARIZONA, 

Blauvelt. Harrington. 
Bureh, H. Ken yon. 
Collins. Edgar A. 
DeKalb, Courtenay. 
Eye, Clyde M. 
Smith & Zlesmer. 
Ten I lever, Uneko. 



( UIFOHMA. 

Abbott, James W. 
Arnold. Ralph. 
Bain. H. Foster. 
Beatson, A. K. 
Benjamin, Edward U, 
Bradley, Fred W 
Bureh, Albert. 
Burch, Caetanl & 

Hers i 
Caetanl, Gelaslo. 
Carpenter. Alvln B. 
Chodzko, A. E. 
Clark, Baylies C. 
Clark, C. C. 
Clevenger, G. Howell. 
Colbath, James 6. 
Cranston, Robert K. 
i -iikin, Fred H.. Jr. 
Dennis, Clifford G. 
Folsom, D. M. 
Gibson, Arthur. 
Grant, Wilbur H. 
Grunsky, C. E., Jr. 
Haley. Charles S. 
Hartley. J. H. 

Harvey, F. H. 

} l< llrnann, Frederick. 
Hoffmann. Ross B. 
Holland, L. F. S. 
Hubbard & Spiers. 
Hunt & CO.. Robt W. 
Huston, H. L. 
Hyde, James M. 
Janin, Charles. 
Johnson, Harry R. 



j ueseen, Edmund. 
Keegel. P. A. 
Kerr, Mark B. 
Leslie. Eugene h 
Mi Laughlln, R. P. 
Merrill. Charles W. 
Merrill Metallurgical Co. 
Merrill. Frederick J. H. 
Morris, F. L. 
Mm id. Seeley w 
Munro. C. H. 
Myers, Desalx B. 
.Will. James W. 
Newman, M. A. 
\m\ - s, William S. 
' ismont, Vance C. 
Pollak Co. The A. J. 
Prlcbard, W. A. 
Probert, Frank H. 

rd. William H. 
Ralnsford, R. S. 
Ray, James C. 
Ross, <;. MeM. 
Royer, Frank W. 
Scott, Robert. 
Stmonde, Ernest H. 
Sheer, F. L. 

Smith, Howard D. 

Stebblns, Elwyn W. 
Btotms, William H. 
'I'ln. nms. E. G. 
Tolman. Cyrus Fisher. Jr. 
Turner, H. W. 

: i lernewltz, M. w. 
Wartenwel ler, I >tto, 

& Co. 
Welch, R. Kemp 
Wiseman, Philip. 

Wolf. J. H. G. 



COLORADO. 

Allen & Colburn. 
Argali & Sons, Philip 
Bancroft. Howland. 
Chase. Charles A. 
Collins. George E. 
Dorr, John v. N. 
Farlsh, John B. 



Finch, John Wellington. 
Griffith & Co,, T. R. 
Mills & Willis. 

Holland, L. F s. 
Reld, Walter L. 
Rlckard, Forbes. 
TImmons, Colin. 
Toll. Rensselaer H. 
Worcester, s. a 



NEVADA 

Cutler, H. C. 
Ferguson, I tons Id. 
Lakenan, C. B. 
Symmes, Whitman. 



IDAHO. 

Anderson A: Son, G. 

Scott. 
East on, Stanly A. 
Hershey, Oscar H. 
Livingston & Stewart. 



ILLINOIS. 

Mollis. H. L. 

Hunt & Co.. Robert W. 



LOl ISI V\A. 

Stanford, Richard B. 



>i %ss I CHI SETTS. 

i "■ I • i man. Alton L. 
da, Robert H. 

Rogers, Allen Hastings. 



HICHIG \ V 

Dlckerman, Alton L 
Dimeter, Carl B. 



MIXXESOTA. 

Bowman, Frank A. 
Collins, K.iwiu James. 
WInchell, Horace V, 



HISSOI It i. 

Hall, R G. 

K Irby, Edmuni I I : 

Ma i" "tins.. n. Jas. W. 



HO. NT AN A. 

Bard, D. C 
Creden, William L 
Greene, Fred T. 



XEW YORK. 

Aldrldge, Walter H. 
Armstead, Henry Howell 
Ball. Sydney H. 
Beatty, A. Chester. 
Benedict, Wm. de L. 
Brodie. Walter M. 
Canadian Mining & Ex- 
ploration Co., Ltd. 
Channlng. J. Parke. 
Clark, C. Dawes. 
Cranston, Robert E. 
Dorr. John V. X. 
I ►ufoiijcq. Edward L. 
Dwlght, Arthur S. 
Er diets, J. F. B.. Jr. 
Ev eland, A. J. 
Farlsh, John R. 
Fearn, Percy L. 
Finch. John Wellington. 
Flnlay, J. R. 
Garrey, George H. 
Hamilton, E. M. 
Hassan. A. A. 
Henderson, H. P. 
Hendryx, Wilbur A. 
Hunt & Co., Robert W. 
Lindberg, Car] O. 
Lloyd, U. L. 
Lnngyear Co.. E. J. 
Mercer, John W. 
Mlnard, Frederick H. 
Mines Management Co. 
Olcott & Corning. 
Perry. O. B. 
Pol lion & Poirier. 
Pomeroy, Wm. A. 
Raymond, Rosalter W. 
Read, Thomas T. 
RIcketts & Banks. 
Klordan. D. M. 
Rogers, Allen Hastings. 
Rogers, Edwin M. 
Sharpless, Fred'k F. 
Shaw, S. F. 



Simon da & Burna. 
Spllsbury, !•;. Gybbon. 
Sussman, Otto. 
Thomas, B. G. 
Thomas. KIrby. 
VonRosehberg, Leo. 
Webber, Morton. 
Westervelt, William 

Young. 
Wright, Louis A. 
Yeatman, Pope. 



OHEGOX. 
Miller. Bernard P. 



PENNSYLVANIA. 

Ayres, W. S. 
Chance, H. M. 
Clapp. Frederick G. 
DuBois, Mixer & Armas 
Garrison, F. Lynwood. 

Goudah', Stephen L. 
Myers, Desaix B. 

Queneau, A. L. 
Spurr, J. Edward, 



PHILIPPINE ISLANDS 

Hanlon, Russell Yale 
Mil 'ann, Ferdinand. 
Wll t, M c. 



TEXAS. 

Bradley, i>. H.. Jr. 

K'innon, Wm. H, 



UTA H. 

I iiiBnis. Mixer a Arms - 
Jennings. E. P. 
Kirk & Leavell. 
Krumb. Henry. 
Nell I, James W. 
Sears. Stanley C. 
Talmage. Sterling B. 
Winwood, Job H. 



WASHINGTON. 

Bellinger. H. C. 
Clark. V. V. 
Clarke. Riiv H. 
Mallhot, Charles. 



ENGINEERS IN FOREIGN COUNTRIES 



AFRICA. 

Bosqui, Francis L. 
Bristol. J. J. 
Dixon. Clement. 
Rotherham, G. H. 



ASIA. 

Beadon, w. R. Coleridge. 

P. L. 
I -i. lis. in. A. A. C. 
Eardley-Wllmot, S. 
Macnutt, C. H. 
Vallentlne, E. J. 



AUSTRAL! \. 

Fraser, Colin. 

Grace, William Prank. 

Smith, J. D. Audley. 



CANADA. 
Banks, Charles A. 
Brewer. Win. M. 
Brown. H. B. 



Canadian Mining & Ex- 
ploration Co., Ltd. 
Ferrler, W. F. 

Samuel S. 

m a i dman, John E. 
ECelter, Frederic. 
Klrby, A. G. 
Lamb, R. B. 
Levy. Ernest. 
Lorlng. Frank C. 
Tyrrell, J. B. 



CENTRAL AMEBIC ». 

Hartley, J. H. 



EUROPE. 

Ackerman, Audley H. 
Alexander Hill & 

Stewart. 
\ ll.n, .\. W. 
Ralph! 
William. 

Ion, ii. c. 

on, W. I:. Coleridge 
Beattv, A. Chester. 



Botsford, Robert S. 
Bray. Francis P. 
Brown, r;. Oilman. 
Chaplin, George P. 
Collins, Henry F. 
Curie, J. H. 
I 'linker. A. E. 
DuBois, Mixer ,£: Armas. 

is. .!. F. B.. Jr. 
Fennell, John Howard. 

' ;. r it. i: M. 

Henderson, J. A. Leo. 

' l.arles S. 

Hollowas . ' ieo. T. & Co., 

i.i.i. 
Hoover, H. C. 
Hoover. Theodore J. 
Hunt, Bertram. 
Hutchins. .1. p. 
Inder & Henderson. 
Inskipp & Beyan. 
Jones, 1 1' ii ry Ewer. 
A. F. 
mi, W. H, 
Lorlng, E. A. 
Lorlng, W. J. 



Mlchell. George V. 
Mines Management Co. 
Nichols, Horace G. 
Nicholson, Francis 
l'.iwle & Brelich. 
Payne & Co., F. w. 
Pearse, Arthur L. 
Perkins, Walter G.. & Co. 
1'risk. Thomas H. 
Pui-lngton. Chester W. 
Queneau, A. L 
Rlckard, Edgar. 
Rlckard, T. A. 
Romer, B. F. P. 
Shaler, Millard K. 
Smith, Reuben Edward. 
Stephenson, Geo. E. 
stiiu-s. Norman C. 
Stockfeld. G. A. 
Teale, J. W. 
Thomas, E. G. 
Tin. mas. H. M. 
Thome, W. E. 
i Thurston. E. C. 
Titcomb, H. A. 
Turner, Scott. 



\\ ea i herbe, i I'Arcy. 
Wright, Charles Will. 



MEXICO. 

Armstead, Henry Howell 
i teldwell, Forest B. 
Gr. .the & Carter. 
1 1 oyle, Charles. 
Minis Management Co. 
X 1 1 ill. Arthur C. 
i lid field, Frank W. 
Raymond, Robert M. 
Royer, Frank W. 
Simpson, w. E. 
Stevens, Blarney, 
Tweedy, ' leo. A. 



SOI I'll IMBRICA. 

r nil.- & Davidson. 
Couldrey, Paul S. 
i Jamba. F. Perelra. 
Hellmann, Frederick. 

Lamb, Mark R. 
Lewis, II. Allman. 
sit a nss, Lester W. 



.Inly 4 I9H 



MINING \M) n II \i 11 it PR| sv 



17 



PROFESSIONAL DIRECTORY 



ABBOTT. James W , 



BANCROFT, 
> eaaaitiaa 

i .eni 
Cable Hownan 


Howland, 

MI..I.... <.r.>l»Kt.l. 

llilll.llHK. 

Coda II.. If. .i.I M.N 


•111 



BRADLEY, D. H„ Jr., 

H< ■ i I. >.l i ... I,.. . , 

"**»- I""" U..HII- 



ACKERMAN, AudJey H., 

Mliilii* Cuilurrr. 



BANKS. Charles A., 



Minim; nml »l. i itlliti iil< ii I linulnrrr. 

U.I 
P ■ I 

A ,,..,] |t I ' 



BRADLEY, Fred W., 



M IiiIiil, I lltlnrrr. 

I Cod. II. .If- .-.I M. .Will 



ALDRIDGE. Walter H . 

HlalttK in. I M. i -II,.. l. i. .1 KuKlnrrr. 

u m i'.. Thorn p 

It Wall 81 . Ne» ^ 



BARD, D. C, 






.lli.luu .. 


aotofflaf 




p .1 II... 


Hull.- 


u 



BRAY, Francis P., 


tlluina 

liimlnrrr. 


i" : Eliiln :.. nu< 




London, u 


I'lliK 


Cable Patrlclue, i 


M 


Code: It... 


imhaU'a Irani rial 



ALEXANDER HILL & STEWART, 

I onviitlluK I '.iiuln«-«r- anil M «-i ■■ 1 In re 1*1 B, 

I Broad 81 don* E C. 



BAYLDON, 


H. 


c, 






Mil. hit: 

Port, No - B 
R 


Baa 
ussla. 


nrtr, 

oaky 


Oblaat, 



BREWER, Wm. M., 

.iinii.u KiikIih'.t iiml Qaoleerlat* 

P. ii. Bos 701, Victoria, B I 

Cable: Brewer. Code: Bedford M NalU, 



ALLEN, A. W., 

Mrinlluru. of tiold null Ml. it. 

Inal M ... M. 
1 riiisi.iuv Clroua, London, E. C 

Platalenor. IV.:.il ■ .■.!■- 



BEADON, W. R. Coleridge, 

>l InluK Engineer. 

% A. Scott & O H S. King & Co., 

Ron froon, Bur ma. 6G Corn ml), 

Cable Mentor, Rangoon. London, E. C. 



BRISTOL, J. J., 



Mlnlntc I^iik) nrt-r. 

\ bbonl io koon Mine, 1 
I told Coaat Colony, Weal Afrl 



ALLEN & COLBURN, 

lOoKlnrrrm. 

.Mining, Hydraulics 

aflll Irrigation. 

[deal r..it. . Denver. 



BEATSON, A. K., 

Mining KuiflneiT. 

Kormerly manager Big Bend, CaL 

Later at Latouche, Alaska. 
113 Union Oil Bdg., Los Angeles. Ca!. 



BRODIE, Walter M., 



Mining l-Cnglncrr find Melilllnru i-.r. 

Car*.- Batopllas Mining Co.. 
IS Broadway, New York. 



ANDERSON & SON, G. Scott, 

Ooaaalllas Mininic Bawlaeeia. 
Wallace, Idnh... 
,i u.-ii, Mines. 

B. .ii"! .: McNeill 



BEATTY, A. Chester, 

" .mi-, ii 1 1 I nu >| lilt nu I'innlK.'IT, 

71 Broadway, New York. 
No. 1 London Wall Bdgs., London. E.C. 
Cable: Granitic. Code: Bedford McNeill. 



BROWN, H. B., 



British Columbia Mines Bought. Sold, 
and Operated. 
Pacific Block, Vancouver, B C. 
Hedley, B. C. 



ARGALL & SONS. Philip, 

MinliiL and Metnlliirnleiil Koulnfrrit. 

Flret National Bank Bldg., Denver. 
Cable: ArgalL Code: Bedford McNeill 



BELLINGER, H. C„ 

^It-tiilhiruii'nl l-'iiiuiiu-.T, 

Spokane. Wash. 



BROWN, R. Gilman, e.ji., 

( 'on n nil in u Engineer. 

62, London Wall, London, E.C. 
Cable: Argeby, London. Usual i_' ..led 



ARMSTEAD, Henry Howell, 

< on»iiltluK Mining EiiKlueer. 

29 Bi oadway, New York. 
ApartadO 65. Guanajuato. Mt-xico. 



BENEDICT, William de L., 

Mining J 'Jic In.-.r. 

19 Cedar St., New York. 



Mm 


•h. Ca.tn 


ii A EXershey 




BURCH, 


Albert, 






c 


IIINUllltlK 


Engineer. 




Crocl 


er Bdgr., 


3a n I'Yancisco. 




I'nl.l.-: Miin-li. 


Usual C 


■ les. 



ARNOLD, 


Ralph', cam. 


•: Ralf 


arnoil. 




ini.l IV.n.lt'i.ii 


KdkI 


ncer. 


Union oil 


Btdg., Los Angeles, 


Cat. 


116 1 


roadway. New 


York. 




No. 1. 1...H.I. 


n Wail Bdgs. 


Londa 


i E.C. 



BENJAMIN, 


Edward H., 




Conanlttna; Miu 


ng Englm 


er. 


80S Linden 


Streel 


. Oakland 


Cal. 



BURCH, H. Kenyon, 

Mechanical mid Metulliirglcnl Engineer. 

i lare [nsplratlon Consolidated 

Copper Co., 
Miami, Gila County, Arizona 



AYRES, W. S. 

Mining and Mechanical KukIuwt. 
i [azleton, Pa- 
Consultation, Exam., Reports. Many 

years' exp. as M^r, i n.n a ml ' '--al Mines. 



BLAUVELT, Harrington, 

Mlnlnic Engineer nnd Metallurgist. 

Prescolt, Arizona. 
Mines examined and reported upon. 



Khm h, Cn.-iiinl & llnshrv 

CAETANI, Gelasio, 

Consul < I ng lOiiglneer. 

I. 'rocker Bilg.. San Kra ncisco 

Cahle: CaetanL Usual Codes. 



BACH, William, 

Placer Engineer. 

Glyngartli. Beecliwood Rd., 
Sanderstead, Surrey. England. 

Code: McNeill. 190S. 



BOSQUI, Francis L., 

ConHultlng Metallurgist!. 

Rand Mines, Ltd.. 

Johannesburg, Transvaal. 

Cable: Eranbo. Code: Bed. McNeill. 1908. 



CALDWELL, Forest B., 

Supt. Canib-la ria Land. Mining & Power 

Co., Ltd.; Cons. Kng. Kstaca Min. Co., 

San Dlmas, Durango, Mexico. 

Code: Bedford McNeill. 



BAIN, H. Foster, 

Mining Geologist. 

Editor Mining and Scientific Press. 
No professional work undertaken. 



BALL, Sydney H., 



Mining Geologlnt. 

71 Broadway, New York. 

Cable: Sydball. Code: Bedford McNeill. 



BOTSFORD, Robert S., 

1 1 i 1 1 i n ii 10 li g I n e «' r. 

Nicolo-Pavda Mg. Dist. Co.. Pavda 

Estate. Vyla Station. Bogoslovak, R. T., 

Government of Perm. Russia. 



BOWMAN, Frank A., 

Mining Engineer. 

Plans, Surveys, Reports, Management. 
Gilbert, Minn. 



CANADIAN MINING & 

EXPLORATION CO., Ltd. 

Consiililnic Mining; Engineers. 

Mines ami Prospects Purchased 

or Financed. 

43 Exchange Place, New York City. 

Canadian Offices: 

Traders Bank Bdg., Toronto. Ontario. 

Drake Block, Victoria, B. C. 



18 



MINING AND SCIENTIFIC PRESS 



July 4, lftU 



PROFESSIONAL DIRECTORY 



CARPENTER, Alvin B., 

Mluinic lOnKlaerr. 

' 'all rornla Bdg . Lew Ansel* 



COLBATH, James S., 

Examination, Development, 
and ' ipcral Ion of Mini 

Cyanide Pr s^ 

."j<i Gramercy Place, ix>s A 


E 
pt 

;: g 


mil 

• i t 

■'.■. 


hi 

l the 
Cal. 



DICKERMAN, Alton L., 



Multifile tllnluic l-lnnliifiT. 

70 State St., Boston, Mass. 

temporary address: Houghton, Mich. 



CHANCE, H. M., 



Coal. 



■ uiHiilf Ink Mining; I ' hi; i nt-.-r. 

:; D rex el Bdg.. Philadelphia, 





• 


COLE, F. L., 




Mining 1 'iiuliM-.-r. 




China. 




Cable: Banco. 





DICKSON, Archibald A. C, 

M 1 n in Li 1 ■', ii tliit-t- r. 

ECodarma, K. f, Ry„ Indli 
Cable: Dickson, Nawada. Usual 


Codes. 



CHANNING, J. 


Parke, 


' i'11-ii 1 1 t mi; 


1 :nulii'-«-r. 


61 Broad wa j 


. New YMik. 



COLLINS, Edgar A. 



II I ii in u Kuelnecr. 

I ""ii n wealth Mine, 

Peai ce, Arizona. 



DIXON, Clement, 

M I it in i; i:uuliifiT. 

P, O. Box 306, Bulavi i i m;i. 

Cable: Clement Dixon. Usual Codes, 



CHAPLIN, George P., 



All ill UK I i ni; i ii«- it. 

■ ; 1 1 ..■ Bruce Harriott & Co.. 
:. London Wall. London. E.C. 



COLLINS, Edwin James, 

MlnhiK Lniiliieer. 
Mine Examinations and Management. 
1008-1009 Torrey Bdg. Duluth. Minn. 



DODGE, W. R., 




MflnlliirKl.'iil 


engineer. 


RusseUville. 


Alabama. 



CHASE, Charles A., 

MlnlllK KniA iiirrr. 

1?A First Nat. Hank Bdg.. Denver. 
Liberty Bell <i M Co., T.-lluride, Colo. 



COLLINS, George E., 

Mlnlmc I liitiliit-t-r. 

Mine Examinations and Management. 

120 Boston Bdg„ Denver. 
Cable: Colcomac. 



DORR, John V. N., 



Metiilliirgleul ICugiiieer. 

First Natl 1:. mk lids, Denver. 

50 Church St.. New York. 

Cab].-: lien. i,„i,. Bed McN., West TJn 



CHEDE & DAVIDSON, 

roiiMiiltliiK Mining lODKlnrcrn. 

Examinations and Reports. 

1: presentation and Management of 
Foreign Companies. 

fall. Rep. of Colombia, Smith America. 

Chedavl. 
Codes: Bed. McNeill. Lleber, A. B.C. 5th. 



COLLINS, Henry E., 

II I ul ii u Ktiuiuet-r. 

Huelva Copper i: Sulphur Co., Ltd.. 
Valdelamusa, Pro\ . de Huelva. Spain. 
Cable p. Code: Broomhall. 



COULDREY, Paul S„ 

Mining; Eneinter. 
Gen. Mining Sup1 <Vrro de Pascn Min- 
ing Co., Oerro do Pasco. Peru, S. A. 
Cable Cerrocop. 



DRUCKER, A. E., 

Metiilliirgleul Engineer. 

62. London Wall. London, F..C. 
Testing Designing, and Constructing 

Plants lor Gold. Silv,.,- and Copper Ores 



Dubois, mixer & armas, 

Consulting Mining engineers. 

302 Harrison Bdg.. Philadelphia. 
229 S.W. Temple St . Salt Lake Cltv. 
' Boul. Eroile Atigler, Paris. France. 



CHODZKO, A. E., 



Conn uii Iiik Mechanical Knulnccr. 

Specialty: Compressed Air. 

17 I'll. -la ii Bdg., San Francisco. 



CRANSTON, 

Mini 

i:'.7 Holbrook 
Room 1 108, No 
Cable: Recrans, 


Rohert E., 

UK engineer 

IMs.. San F 

1 1 Pine St.. 

Cod,-: Mi 


ranc 
New 
Net 11 


SCO. 

York. 

190S 



DUNSTER, Carl B., 

Mining Engineer. 

Savings Bank Bdg.. Alar itte, Mich. 

Mgr. .Mines Dept.. Breitnng & Co., Ltd. 
New 'H ork-Chirago-Cleveland-Marquette 



CLAPP, Frederick G., cms/ Oeoiogui 

Associated GeolajElesd Engineer.. 

Reports on oil. lias and Mineral 

Properties. 

^01 Fourth Ave. Pittsburg. Pa. 



CREDEN, William L., 

Conitiiltlng Mining Knglurer. 

Mine Examination and Management. 

First National Batrk Building, 

Butte, .Montana. 



DWIGHT, Arthur S., 

Mining; Knelnerr and Mi-inlluruUi. 
j:t Broadway. New York. 
Cable: sinterer. 

<""■"»'-: Bed. McNeill; Miners & Smelters. 



CLARK, Baylies C., 



Mining; imil Mrrlmnlcnl Kng Im-rr. 
Sutter Creek, California. 



CURLE, 


J. 


H., 










Mine 


A 


nlner. 


62 


Lo 


ndon 


w 


all, London. 



EARDLEY-WILMOT, S., 

Mining Hnglneer. 

10. Strand Road. Calcutta. India. 
i !able Warble, Calcutta, 

Codes; Bedford McNeill; West. Union. 



CLARK, C. Dawes, 



Minim; and KIIU'lrDi-y I ' m; 1 1 r. 

Mining and Industrial Economy. 

Wltb w. Rowland Cox and Staff. 

165 Broadway. New York. 



CUTLER, 


H 


c 








Mini 


IIU 


lai«ineir. 








BE 


, p 


eno, Nevada 










Code: Bedford 


McN 


-ill. 



EASTON, Stanly A., 

M In in c I lim i iit'i-r. 

Manager Bunker Hill & Sullivan Min- 
ing & Concentrating Company. 

Kellogg. Idaho. 



CLARKE, Roy H., 



Mining Knglarrr. 

Old National Bank Bdg., 
Spokane, "Wash. 



DAKIN, Fred H., Jr., 



Mining; Knglnrer. 
1 1 a Sutter St.. San Francisco. 



ERDLETS, J. F. B., Jr., 

Mining I ".iiulm-'T. 

.", London Wall Bdgs., London. E.C. 

I.". Broadway, New York. 

Cable: Branderlet. Usual Codes. 



CLARK & CLARK, 



I outlining Mining engineer*. 
C C. Clark. V. V. Clark. 

Broadway, 4 44 Henry Bdg.. 

Oakland, Cal. Seattle. Wash. 



DE KALB, Courtenay, 

Consulting Engineer. Pacific Smelting 

& Mining Co. 

Tucson. Arizona. 

Cable: Dekalb. Code: Bedford McNeill. 



EVELAND, A. J., 



Minini; Engineer. 
Broadway. New York. 



CLEVENGER, G. Howell, 

Melullurglenl Engineer. 

381 Hawthorne Ave.. Palo Alto. Cal 
i lode: Bedford fccNelll 



DENNIS, Clifford G., 

Mining Engineer. 

Crocker Bdg., San Francisco. Cal. 
Sinned i !ode Bedford McNeill. 



EYE, Clyde M., 



Mining Engineer. 

Permanent mail address: 
Box 1298, Phoenix, Ariz. 



t I •• I * 



MIMV. AM) SI II Mil I- I'KI SS 



li 



PROFESSIONAL DIRECTORY 



FARI8H. J B 

*•!•!■» Itoi Ur ff. 
-rl«h. 



FEARN. Percy I. 



MlnlHK t:n«lMr«-r. 



FENNELL. John Howard, 

'Ho In ■ 

England. 



FERGUSON. Donald, 

-ii.ilii. mi,,i,,^ Kaslnrrr. 

Nov. 
Mor. In| t ••! McNeill 



FERRIER, W. F., 



I ••ll^llllllIK Mllllllw I liliHi'i r i.i.l 

l.folo K Ul. 

. i Lamsd*o Bdg.. Toronto. Ont. 



GIBSON, Arthur, 



llalaa i:a«lar«.r. 

- ma 
i >I«M Si . Kan I 



GOODALE, Stephen L.. 

'lining CniUrrr. 

M ' Uluricv. 
I'nli 

I'lM ■'■ .Ik' 



GRACE, William Frank, 



»lluli,ii I ntlllrrr 

Wallil. N Z 

>■" •■•.<■■■ Lilly. U.uul • '...I, ■«. 



GRANT. Wilbur H., 



i..-nli>Kl<' i:ii K lpr«>r. 

i li Holbraok Bdg .-■.in 

Code: Bedford Mi Mi in 



GREENE, Fred T., 



Hlnlasj Bagrlaeer mill GeelotTlst. 

101-2-1 state Saving! Bank Bdg 

Butte Montana. 



HARVEY, F H , 






HASSAN, A A ,*"■'"" :-••"•«'- —i 






HELLMANN, Frederick" 

»iinio« Walla., ,. 

■•"•'- "- ".-Mi...: M ' N 



HENDERSON, H. P., 



'Mi. int Kiialurrr. 

'■•'■ Broadway, Now roi li 



HENDERSON, J. A. Leo^ 

"iuIiik BaglavcT aad Geo'loa-lat. 

London, . 

cable: Olco.opl , ,„|„ ,.,.,, M ,. V „ M , 



FINCH, John Wellington, 

<.<-«>l<ficl*tf .iimI I iiiiiiin-r tif Mm 

Ti Broadway, Now Fork. 
- Bdg.. Doovor 



GRIFFITH & CO., T. R., 

< onnt rin- 1 Iihi. >lct ii 1 1 u ru i. n 1 
( oUMiiltlriK 1 ml: in. . r> 

i 16-417 Central Sn . Inga Bank 
Denver, Colo, 


1 ml 

Bdg ■ 



HENDRYX, Wilbur A. 

.. ,. Hetallnrarart. ' 

;, ' , ■•"■' ■'■■■<' Mar. Rend, i i !i ,„,,i.. 
Hen'ol WlUlam SI . NY 



FINLAY, J. R, 




tllniut. I'.mlHrrr. 




II William 


81 , 


Now york. 





FOLSOM, D. M., 



Mining K DIE I tiff r. 

Stanford tjnlveralty, Callfoi 



GROTHE & CARTER, B^SeSa, 
Patented S3 stem "f Pulp Agitation. 

teal Imnrovein- 

-.1 s.ui Agustln 53. P. 11, Bo* .'•.•.I 

M..-xlco, P. I'. 



GRUNSKY, C. E., Jr., 



Minii.u I :imln..iT. 

American Engineering Corporation. 
57 Post St., San Francisco. 



HERSHEY. Oscar H.',' 

I iinniilflnic >llnliitc OeolOKtaf 

, Kellogg-, Idaho. 

' ■' ll|,,: 'l.-isli.-y ,-,.,!.. |.„ ,!,,,,,! McNeU , 



HERZIG, Charles S., 

Mining KiiKiiit-tT. 

1. London Wall Building*. London, B.C 
• able: f ierzlg. 



FOWLER, Samuel S., 

MlitinK Knxlnrrr anil >l.i nt J.i ruNi. 

Nelson, British Columbia. 
Cabl-: Fowler. I's'ial Codes 



HALEY, Charles S„ 



lllnluic KiuclnefM 

Placer Drilling. 

:i Post St.. San Francisco, Calif oral 



HILLS & WILLIS, 

Victor ■;. Hills. Frank G Willis 
Mini. in Enaii r. 

.''Vl 1 ,',','r "''■ : " M ' ■'' Bdg.. Denver. 

' ■''■'■■ I'niwiii. Usual Codes. 



FRASER, Colin, 



Minim; Geologist. 

Bank of New Zealand. 
Sydney, N. S. W. 

Code: McNeill. 1808 



HALL, R. G., 












M. Uilliirtl 

Gen. Mgr 


fill unit 

United / 
Kansas 


1 li.ini.ii 1 

line & Ch 
City, Ho. 


Kn«l 

emlca 


.fpr. 
Co., 



HOFFMANN, Ross B., 

>l 1 11 In u Kniclni't- r. 
228 Perry St.. Oakland, Cal. 
Cable: F.osshof. 



GAMBA, F. Pereira, 

« .01-iilt laic MlninK Engineer* 

Reports on Mines In Southern Colombia. 

Tmiuerres, Colombia, S. A.. 

via Panama y Tumaco. 



HAMILTON, E. M., 



Metallurgist. 

Specialty: Cyanidlng Gold and Silver 

Ores. 
Room 1883, 50 Church St.. New York. 



HOLLAND, L. F. S. 



Mining Engineer nmi HetaUurgfls 

Examinations and Reports 

«t»l II. W. H-llniun Bdg, 
Los Angeles. Cal. 



GARREY, 


George 


H., 




ConMullluK Minim. 


Geol 


agist and 




r.itiil n 


eer. 




115 I-. 


roadway. 


New 


York. 



HANLON, Russell Yale, 

>linlni; I : iiu iiifi-r. 
Manila, P. I. 

1 ai.l.-: Nolnah. Code: Bedfrn .1 McNeill. 



HOLLIS, 


H. 


L., 








Conn 


ilfli 


IC Mini 


nic 


llriKl 


nrrr 




mid 


Metal 


iiriclNt. 




1117 First 


Natl 


»nal B 


ink 


Bdg 


, Chicago. 



GARRISON, F. Lynwood, 

M In I nu Engineer. 

:••„ Drexel Bdg., Philadelphia. 
Cable: Aurum. Code: Bedford McNeill. 



HARDMAN, John E., 

• ruin 11 1 1 I nu 111 ni ok l-'.imiii'-rr. 

112 .St. James St., Montreal. Canada. 

Cable: Hardman. ('ode: Bedford McNeill 



HOLLOWAY, Geo. T. & Co., Ltd. 

MetnUorgtsts ami Metallurgical 
E-aarlaeexa. 

9-13 Emmetl St., Limehouse. London. K. 
Cable: Nedlithlc. Code: Bedford McNeill. 



GEPPERT, R. M., 



Hlnlag 1 :ituiin*i-r. 
' Salisbury House, London, E.C. 

Code McNeill i Both Editions) 



HARTLEY, J. H., 



m iniiiL. Btafflneer. 

ngi rez ■ lold Fields <ie Co 
Temporary Address: 
jt:^2 Webster St.. Berkeley, Cal. 



HOOVER, H. C, 



Mining Engineers 

1 London Wall Bdgs., L-.nd.-n. EC. 
No professional work entertained 
1 ;able: ' !revooh, London, 



20 



MINING AND SCIENTIFIC PRESS 



July 4. l!»14 



PROFESSIONAL DIRECTORY 



HOOVER, Theodore J., 

Mining Engineer. 

! i.,,, „ Wall Bdgs., London, E.C. 

o. 



JONES, Henry Ewer, 

MlllllIU I'.lltlllftT. 

Parliament Mansions. Victoria St., 
Westminster, London, s. W. 
Ewerones, Code:BroomhaU'8 Imp. 



LANAGAN, W. H., 

Mining KDKluerr. 

ursk iloldlields. Ltd 

Nlkolalevsk, Eastern Siberia. 

lahlc: Urskulil Code: Mc.V. (both ed 



HOYLE, Charles, 



Mining Engineer. 

Apartado 8, EH Oro, M- %\t 



JUESSEN, Edmund, 



11 ininu KiiK'int-fr. 

906 Mechanics Inst. Bd«.. 
San Francisco, 



LESLIE, Eugene H., 

HlBlug Engineer. 

Assi Editor Kilning and Scientific Press. 
No professional work undertaken. 



j , ih; James Spiers. 

HUBBARD & SPIERS, 

MinitiK. Metallurgical und Mechanical 

I '.Hullirrritlt'. 

vi;: .Mills ll.iildum. San Framrlsco. 



KEEGEL, P. A., 

Minim; KllRllieer. 

alty: Cyanldatlon Plants Installed. 
U E. Market St.. Los Angeles, Cal. 



LEVY, Ernest, 



Mining Engineer. 

Representing Alex mil & Stewart 

Kossland, British Cnlmbia. 

' -j ■ ■ 1 - ■: Truculent, '.'ode: Bedford McNeill 



HUNT & CO., Robert W., 

I Snjrlnccia* 

Bureau ol Inspection, Tests 4 Consul 

Chicago-San rtaWo-Sm Yora-MUsburg. 

san Kranelsco i niie. . i',1 Kearnj st 

St. Ixmls-Moutreoi-liOndon. 

Consulting, Keslgalng and ^ " i 1 , ""■'-''":. ,,'i"; 
ameers, rnsueelors ol Kaliroad. Mruciurai 

and other Materials and Equipment. 

Chemical ami Physical Laboratories, 



KEFFER, Frederic, 

Mining Engineer nnil GeoloKUrt. 
With 

The British Coli la Copper Co., Ltd., 

Greenwood, B. C. 



KERR, Mark B., 

Consulting Mining Eugineer. 

626 Mills Bdg., San Francisco. Cal. 



LEWIS, H. Allman, 

Mnunging Engineer. 

The Berenguela Tin Mines. 1. 

Address. •', QlbbS & Co., Oruro 

Code: McNeill i 



LIVINGSTON & STEWART, 

D. C. Livingston. C. A. Stewart. 

Mining Engineers and GeologUtM. 

Examinations, Reports, Surveys, -Maps 
Moscow, Idaho. 



HUNT, Bertram, 

Meinllurgl*t 
| E. Hunt A • 
123 Weal i leorge St., 1 1 



KINNON, Wm. H., 

HI nine Engineer nnd Hatnllurglst. 

307 San Francisco St., 
El Paso. Texas. 



LLOYD, R. L., 

Metallurgical Engineer. 

Specialty: Pyro Metallurgy or Copper 
and Associated Metals. Cable: Rlcloy 
Code: Bed. McNeill. 29 Broadway, N T. 



HUSTON, H. L., 

Mining Engineer. 

Alaska Commercial Bdg-, 

'ra nclsco, 
Haruston. 



HUTCHINS, J. P., Mining ICnclmrr. 

imlnatlons in Russia and Siberia. 
20. Qalernaya. St. Petersburg; 
::ti Salisbury House. London, E.< . 
Cable.: Getchlns. ' '■■,!■■. MeX. ■ -' ■ d ■ :\\ .' ■ 



KIRBY, A. G., 

Metallurgist. 

Mill Designing and Construction. 

Spei laity: Concentration & t 'va nidation. 

Dominion Red Co.. Cobalt, Ont 



KIRBY, Edmund B., 

Mining Engineer i Metallurgist. 

918 Security Bdg.. St. Louis. 
Specialty: The expert examination of 

iiiin.s urn] no-la MuigJLal enterprises. 



LONGYEAR COMPANY, E. J., 

Exploring Engineers and Geologists. 

Diamond Drill Contractors. 

Manufacturers ol Diamond Drills 

and Supplies. 

General Office: 710-722 Security Bank 

Bdg., Minneapolis, Minn. 

Cable Address: Longco. Minneapolis. 

Code: Bedford McNeill. 



HYDE, James M., 

Ti • atment of Difficult i ires 
American Agent Murex Co„ Ltd. 
Alaska Commer. lal Bdg . Si ( ra 
Cabli 



KIRK & LEAVELL, 

< iiii-n li I hl: I'inuiiM'i-r-. 

Exa mi nation, Management and Opera- 
tion of Mines. Design Equipment. 
Newhouse, Bdg., Salt Lake City, Utah. 



Bewick, Moreing & Co, 

LORING, E. A., 

Mining Engineer. 

62, London wall., London, B.C. 

Cable: liine.li, Usual Cl 



INDER & HENDERSON, 

Consulting KoBinwrn. 
Dredging and Hydraulicking. 
Tii i Sracecl urch St., London, E.C. 

^^^ 



KRUMB, Henry, 



Mining Engineer. 

Kelt Bdg.. Salt Lake City, Utah. 



LORING, Frank C, 

Mining Englncrr. 
Ho Life Building. Toronto, Ontario. 



Dudli-v J. Insklpp John A B 

INSKIPP & BEVAN, 

Mining Englnt-t-r*. 
1. Broad St. Place, London 

Monazite. Usual < 'odes. 



KUEHN, A. F., 



4 oimuliliig Mining KukIih'<t>. 

1 London Wall Buildings. 
London. E.C. 
• :able Norite. 



Bewick, Moreing t v Co. 

LORING, w. J., 

Milling Engineer. 

OJ. London Wall., London, E.C. 
Cable: Wanton-ss. Usual Codes. 



JANIN, Charles, 



Mining Engineer. 

620 Kohl Bdg.. San Francisco. 
Cable: Charjan. Code: Bedford McNeill 



LAKENAN, 


c. 


B., 


Ml, 

1 


ill.. 
Sly, 


Engineer. 

Nevada. 



MACNUTT, C. H., 

Mining Engineer. 

Care Burma Mines, Ltd , 

Namtu, Northern Shan Slates. 

in ma, India. 



JENNINGS, E. P., 

Mining Engineer. 

Salt Lake City, Utah 

Salt Lake. 

Code: Bedfoi.l M Neill. 



LAMB, Mark R., 



K<|lll|l|IIT. 

Mgr Ail is-t .halmers Co 
Santi.i go i !hlli 



MAILHOT, Charles, 

iiydrimtof itiiurKy of Copper. 

Permanent address: E. 1707 Mission Av., 

Spokane, Ws i I 



JOHNSON, Harry R., 

Consulting GeologlM. 

Petroleum, Water Supply. 
'! V7. II. ■Ilman Bdg., Los Angeles. 
Cable: .lopot. Usual Codes. 



LAMB, R. B., 

.Mining Engineer ami Metallurgist. 
Traders Bank B 

Toronto, Ontario. Canada. 



MALCOLMSON, Jas. W., 

* on -ii 1 1 inu Engineer. 
1012 Baltimore Avenn. 
Kansas City, Mo, 



.Ink 4 1'iM 



MINING \\l> m II \ 1 II |i |'|<| SS 



PROFESSIONAL DIRECTORY 



McCANN. Ferdm.unl. 

< 1 1 ar« alar, r 



MYERS. Dcsaix B , 



Miiilttft liHilarrr. 



PERRY. 0. B., 






'H'-iiii. i .. 








ik 





Mclaughlin, r p. 

i .•u*iiI|Imk *.r»lt>Kl«l nii>l Inglnrrr. 





NAHL, 


Arthur C, 
>u.,i,.« i;. a 


■ rrr. 








■ ..in. 


I M In. 


y 





POILLON & POIRIER, 

Howard Pol lion i n 

Mining lillKlHrrr. 
':'.< Willi SI 



MERCER. John W , 



HI k Knal»r«T. 

I Bl N- " \ ■•' k. 



NEILL. James W., 



Hrlnlllirul"! mill tllulnu Kiih t nrrr. 

■ i ,.-. pom 81 Ball Laki , Dtah, 

Sin 111 hk. i 'a I. 



POLLAK COMPANY, THE A. J., 
i i>ii*iiitiiii£ I'.-ir.iiriim Burlaoera 
California ml Prop, 
Mill- Building, B 

I'ulil.-: pi-lrmig | 



MERRILL, 


Charles W., 

MrtnllnrKl*!. 

nil Bl s.i n ! 

Code* Bedfon 
ii,i M..i pins 


M 


N 

N 


III 

..1 


i. iii.ii 



NEWMAN, 


M. 


A., 


>i 


■lillK 


Kuilnfrr. 


\ .inn. 


lit 


■la •• . Cal. 



PRICHARD, W. A,, 



*l IliliiU l:null|r«T. 

Room 210 i' ... California Bl . 
Ban Francisco. 



MERRILL METALLURGICAL CO. 

Kaglnrrr*. 
l.'l Si. ODd 8t, -San Plain I 

Usual i tofli i 



BalnbrldK' Sej mour .v « Ho 

NICHOLS, Horace G., 

Milll.lt, I Mtill.ll 

Sallsbui t i louse, London. E.I '. 

K.is.-ra. ' ual Code 



PRISK 


Thomas H., 






Mlnlna Knalni-rr. 




Bt Ai;i 


Wall 



MERRILL, Frederick J. H., 

M I in in. Knit I or*- r nod GcolOfflat. 
i;. nloglst ol New >••> k 
nt Bank ltd* . 
Los Angelas. Cal 



NICHOLSON, Francis, 

Mlulng I :.ifc;l r. 

'. London City & Midland Bank. Ltd. 

London, B.C. 

Cable: Nlckl c,„i,. : M.N.iii, mux. 



PROBERT, Frank H., 

1'i.iiNiillliiK KiiKlneer mill Mlnlnu 

Qeolofffat, 

' 'i ntro i Bdg\, Log \m, lea, Cal 
'•■•■idi-i it it. Code: McNeill 



M1CHELL, Geo. V., 

Militate l^naluerr. 

S|.. I 

IS • ;••.. i st Helena, London. E. C 



NOYES, William S., 



Mlt.litu Ciiulneer. 

919 Mills Building, San Francisco. 



PURINGTON, Chester W., 

Mining lCnglnerr. 

'•-'. I don Wall, London, B 1 1 

Cable: I h. nek. i i lode 



MILLER, Bernard P., 

MlnlnK KnKlnrrr. 

simi st . Portland, Or 



OLCOTT & CORNING, 




i E 


■ III ott. C. It. Co 


•nlng.) 


Mlnl.it 


mill MeliillurKli-iil 


KiiKllit'iTM. 




16 Wall St.. New V 


irk. 



QUENEAU, A. L., 



Ui-Ciillui-Klriil Kncliiirr. 

Zinc Smelting and Electrometallurgy. 
Jemeppe Bur Meuse, Belgium. 

i'ulil.-: Aijimak. '.':'■.' CheBtnul St., Phi la, 



MINARD, Frederick H., 



MlnluK Knulnwr. 

Trlnltj Bdg., Ill Broadway, New fork. 
Prednard 



Cod< McNeill. 



OLDFIELD, 


Frank W., 


Mill 


BK 


ECoaTlneer. 


Mn 


.1 ! 


Mlins Co. 


Uolauos 


.1 


lisi.-n, M. vii ii 



RADFORD, William H., 

Alluvial mi ii int. 
2SB0 Broadway, San Frai 
Cable: Bandan. 


elan 



MINES MANAGEMENT CO., 

CoaaoltlnK Mining BBglneen «nd 

lli.i,- MiiniiKi'rn. 

,1 Broadway, New York City 
Branches: 

London, England. 
28 .-in. I 89 St. Swltlilns Lane. 

Mi -.ieo, D. F.. 

Avenlda 1G de Septlembre. Num. 48 
Minium... .. Code: Bed. McNeill. 



OSMONT, Vance C, 



MlnlnK I'JiKlnrcr. 

L03E Mon idnock Bdg.. 
Sa ii Francisco. 



PAWLE & BRELICH, B nSSS». 
(Reginald Pawle, Henry Brellch.) 

Balfour Hi. us.-, Flnsbury Pavement, 

London. E.C. 

Cable: l-hu....i.- c.de: lied. M.Neill. 



RAINSFORD, R. 

Ml nl nit 1 

Manager Argon 

,l;n.'ks'Ui, A niail'H' i 


s., 

lilt 

"nil 


lll'IT 

.Min 
tty, 


Qg Co 

!allfori 



RAY, James C, 



MIdIdk Geologist. 
Microscopic Examination of On 
Palo Alto. Cal. 



MORRIS, F. L., 

Mining l.i.uln. • ' 

1051 Monadnock Bdg.. San Franclaco. 
Cable: Frednror Code:Bedtord McNeill. 



PAYNE & CO., F. W., 

Dredging BInjBlneejrs. 

82 London Wall, London, E.C. 
Cable: Payfidredge. Code: Beet McNeill. 



RAYMOND, Robert M., 

Mining Engineer, 

The Bxploratl !o. of England and 

Mexico. Ltd. Mutual Life H.Ik. n... .'.j::. 
M.xlco. D. F. 



MUDD, Seeley W., 



Mining I :n- in.'i'i 

1208 ll..lllngsworth Building. 

Loa Angeles. Cal. 

Code: Bedford Mi Ni in 



PEARSE, Arthur L., 



Mlnlim Bna/lnrer. 

Worcester House, Walbrook, 

London, E.C. 

!able: Undermined. Csual Codes 



RAYMOND, Rossiter W., 

Mining Engineer ami Metallurgist. 

:':i W. 89th St, New York, i 1 O. Box --' 



MUNRO, C. H., 

kilning engineer. 

Monadnock Bdg., San Francisco. 
Cable: Ornum. Code: Bedford McNeill. 



PERKINS, 

Mem 

62 

Lone 


Walter G., & Co., 

I.i.uo :.l EiiKlnrer. 
. London Wall, 
on. E.C. England. 



READ, Thomas T., 

Mlnlnu and Sclentm. P ■ 
Woolwortb Bdg;., Ni 

Cable: Pertusola. 



MINING AND SCIENTIFIC PRESS 



July 4. 1914 



PROFESSIONAL DIRECTORY 



REID, Walter L., 



ipt, Smuggler-Union Cyanide Plant. 
Testa onstTUCtlon. 

J' it Box 171, Tellurlde, I 



SEARS, Stanley C, 

Minliiu I iunlnftr. 
Reports. Consultation and Management. 

70S Walker Hank Building. 
Sail Lake City, I'lab. Usual Codes. 



STANFORD, Richard B., 

Mining Engineer. 
906. Metropolitan Bank Bdg., 
New Orleans. La, 
3tanford. Code Bedford McNeill 



RICHARDS, Robert H., 

Ore Dre»*lng. 

Make careful concentrating tests for the 
_: ..f Mow sheets for dlfficull ores. 
t [> i Boy Is ton St., Boston. Mass. 



SHALER, Millard K., 



Mining Geologlel nnd Encioerr. 

v Montague du Pare, 

Brussels, Belgium. 



STEBBINS, Elwyn W., 



Ml nine I ' ii ii In '-«• r. 
Mills Bdg , San Fi 



RICKARD, Edgar, 



u 
The Ml nlng Magazine. 

i .ondon, E.C 

Ollgoclasi i '■>.!. i:..,n..r.i mnvjii. 



SHARPLESS, Fredk. F., 

Consulting Mining: Engineer. 

53 Broadwav, New York. 
Cable: Eresharp Code: McNeill 



STEPHENSON, Geo. E. 

Mining Engineer. 

'. E. T. McCarthy, 
10, Austin Friars. London. E.C. 



RICKARD, Forbes, 



Mining Engineer. 

Equitable Building. Denver. 



SHAW, S. P., 

Mining Engineer. 
136 Liberty St., New York City. 



STEVENS, Blarney, 



Mining Engineer. 

Temascaltepec, Est. de Mexico, 

Mexico 

c < Lane Rincon Mines, Inc. 



RICKARD, T. A., 

or, The Mining Magazl 

Salisbury House, London, E.C. 

No professional work undertaken. 

Cable :0 ■ ...h- Bedford McNeill. 



SIMONDS, 


Ernest H., 






Metallurgical 


lOngl 


neer. 




1105 Crock 


-r Bdg.. 


San 


Franc 


SCO. 



STINES, Norman C, „2JK2k 

Polefskoy, Mramorskaya station, 
Perm Government, Kussla. 
Cable: Norxnstlnes. Bkaterlnberg 

Coile: Bedford McNeill tlnnh editions.) 



RICKETTS & BANKS, 



Mining Engineer** nnd Metallurgists. 

BO Maiden Lane, New York. 
Complete ore testing plant. 



SIMONDS & BURNS, 



Mining Engineer. 

Madison Ave.. New York. 



STOCKFELD, G. A, 



* on -ill line Engineer. 

Egypt Bouse, S6-38 New Broad St, 

London. E.C 



RIORDAN, D. M., 



< oiiMiiltlng Engineer. 

Mining Investigations carefully made 
spons I Intending Investors. 
ltjr. Broadway, New fork. 



SIMPSON, W. E., 

Mining nnd Metiillnrgirnl Engineer. 

Fundlclon de Los Arcos. Toluca, 

Mexico. 

I lable: Metalmlner. Code: Bed. McNeill. 



STORMS, William H., 

Mining tlrul.itUi nnd Engineer. 

Mining Methods a Specialtv. 
8487 Hllgard Ave., Berkeley, Cal. 



ROGERS, Allen Hastings, 

CuuMiiltlng Mining Engineer. 

B01 Devonshire St., Boston, Mass 
:i Broadway, Ne* fork, N. v. 
A theaters. 



SIZER, F. L., 

Consulting Mining Engineer. 

916 First Nat'l Bank Bdg., 
San Francisco. 



STRAUSS, Lester W., 

Knuiaeer ol Mlu«M*. 

Casllla iiTi. Valparaiso, Chile, s. A. 
' !able : Lestra-Valpa pa tso 

Code: Bedford McNeill. 



ROGERS, Edwin M., 

< oOMultinic Mlnlnic r.itulueer. 

::j Broadway, New York. 
Cable: Emrog. Code: Bedford McNeill 



SMITH, Howard D., 



M in In u Engineer. 
Kohl Bdg., San Fran I 



Cable: Dlorlte. 



Code: Western L'nion. 



SUSSMAN, Otto, 



Mining Engineer. 

til Broadway, New York. 



ROMER, 


B 


F. 


p., 








2 

Cab 


Sophli 

le: Rei 


Ml 
Pll 


Illnie 1 -Ulif neer. 

in. Amsterdam, Holland. 
ode: A B C. 5th Ed. 



SMITH, J. D. Audley, 

Mlnlnu Knislneer. 

P. O. Box 1357. 9, Bridge St.. 

Sydney, Australia. 

Cable: Jadunand. All Codes. 



SYMMES, Whitman, 

Mining Englueer. 

Mgr. Mexican Mine, etc. 

Virginia City, Nevada. 



ROSS, 


G 


McM 








Mini 


lg 


Hill Vi 


nniiltlng 


Eng 


neer. 


v o . 


Club. 


Stockton 


Cal 


fornia. 



SMITH, 

-, Lenski 
Cable: Re 


Reuben Edward, 

Mlnlnic r.nKim-er. 
[e < : M < '".. Bodaibo. Si 
smith, care Lenzoto. 

Code: McNeill. 


..•ria. 
1908. 



TALMAGE, Sterling B., 

Mining Geologlxt nnd Engineer. 
Geologic Maps, Examinations, Reports. 
Vermont Bil«., 
Salt Lake City. Utah. 



ROTHERHAM, G. H., 



MetullurgiNt. 

City Deep, Ltd. 
O. Box 1111, Johannesburg. 
South Africa. 



SMITH & ZIESMER, 






(I'Tankitn \\ . Smith, Ralp 


i A. 


Ziesmer.) 


< niiMi Ii hit Mining Englneern. 


Work In Mexico " * 


nee 


nit. v. 


Blsbee, Ariz, Code: Be 


tin 


d McNeill. 



Bainbr 

TEALE, J. 


dge, 
W., 


Se\ 


mour A 


Co. 


Sallsl 
Cable: Has 


Ml 

uri 

era 


nlng 
Ho 


Hi 

ise, 


glneer. 

London, E.C. 

I'-sual Codes. 



ROYER, Frank W., 

Mining Englueer. 
I Realty Bdg., Los Angeles, 
and Apartado 805 Mexico, D. F. 

Bedford McNeill. 



SPILSBURY, E. Gybbon, 

Consulting, Mining iniil Metnllurgleal 
Engineer. 

45 Broadw: New York. 
Cable: Spilroe. 



TEN OEVER, Uneko, 

Mining Engineer. 

Mexican Mines and Lands. 

Box -179, Blsbee. Arizona. 

Cable: Uneko. Code: Bedford McNeill. 



SCOTT, Robert, 



Inventor nnd Builder of the 
SeOfl (fculelEsIll er Eurnace. 
S. Eleventh St . 
San Jose, California. 



SPURR 


J. Edward, 






Mining 


(•eologlMt. 




Bull! 




Philadelphia 


Pa. 


Ton opali 




'oinpany of 


■ 



THOMAS, E. G, 

70u L'nion Oil Bdg.. Los Angeles. 
1 1 1 Broadway, New York. 
5 London Wall Bdgs.. London, E.C. 
' lode Bedford McNeill. 



.lul.t 1 1914 



MIMNi. AM) 91 II M II It l-KI SS 






PROFESSIONAL DIRECTORY 



THOMAS. H 


M.. 












MI..I.... 1 


MKlMrrr. 










< chli 


















D 






.■ 


■ 



TWEDDY. Geo. A., 

MI..I... Kailirrr. 

III 



W1LM0T. H C, 

HIi.Imk t-:«alnr»r. 

'. Itll. lux I'" 
P I 



THOMAS, Kirby. 

Ml»lnn KMglurrr. 

1 Expli 

lion ol Mining 

43 I N«'W Voi k 



TYRRELL. J B., 

>llMln K i:u|tl«*-rr .....I <,nilu B Ul. 

lion Llfi Bd 

Tol ■ la 

fnl.lt- T>ir. II UsualCodel 



WINCHELL, Horace V , 

I on*, ill I Inn MIiiIi.h l.ruli. H U|, 

win. 



THORNE. W. E.. 

%1 I nl lit. KuKlurrr. 

4*1- London, ES C 

Cod v 



VALLENTINE, E. J., 

MlnlMjt liiKhttrr. 
in Tin Co., In) an. Uppei Pol ,ik, 

'•■'■!■ M. n. -ill (both Millions) 



WINWOOD, Job H., 



MImI.ik CnKliirrr. 

810-11 Continental lim.k i 
Ball Lake Clly riiii, 
Codi r.. .ii.., .1 M 



THURSTON. E 


Coppee, 




Malaa 


l:nxlnrrr. 




Of A 






Pinners Hall 


AiiMIn I'll 


t is. 


Lot .i. 


Hi, B.C. 





von 


BERNEWITZ, 


M. 


w., 




tlt'tiilliira 


i.i. 






ISO Mark* 


HI 






Ban FranolM 


• ■. ' 


•ill 



WISEMAN, 


Philip, 








Mta 


■g 1 ntlii.ir 






1210 ll.illlnu.u 


..rlli B 


1.... 




lis. 


I ■,,,!. - \\ . - 


lorn Union 






in. 


Cablo: Fllwlsei 


nt it. 









TIMMONS. Colin. 



Minnie. 1 iik I m-rr. 

i lunton, » Colorado. 



VON ROSENBERG, Leo, 

1 iiiiniiIiIiik Mlnlnu I : (lu I iM- 

I-' Bl Iw .. . N. W V.nl; 

* table: Porphyry. 



WOLF, 


J. 


H 


G. 






u 


.in: 


KOI 


N.. 


Hi Ai 


ii'1'lcnn 






Bxi 


Ion 


11, .Ii i 


!o, 


D 


Mill- 


Idg. 


Sim 


. v. ,, 



TITCOMB, H. A., 

• my House, 

London. B.C. 
Cable; Tltcomb. Codi 

(two 


...I McNeil] 
idltlons). 



WARTENWEILER, Otto & Co., 
BasTlaeera and Contractors. 

Mining and Mctallui shea) Plants, 
Industrial Equipment and Installs! 
Vim Nuye n.ii.-,. Los Angeles. 



WORCESTER, S. A., 

ii . . l.a .. I. :. I MlnlnK I l.^lli" ■ i 

Mill T.sis. Design, Constructing, Man- 
agement. Spools! ore-handling PI 

Victor. Col i i 



TOLL, Rensselaer H., 

ilinii. i_ Kniclnrrr. 

110 Boston li.lt-.. Denver. 
Cabli Rentoll Code Bedford McNeill. 



WEATHERBE, DArcy, 

Mli.liiU I :nuln.-i-r. 

ii Copthall Ave., London, B.C. 
Cablc:Natc-hekoo. Code McNeill, both i 



WRIGHT, Charles Will, 



M liiinii Kiitcliirrr. 

CogurtOflUt Sa rdln la, l taly, 
Cable: Wright, Arbua. Codi :Bed.McKellL 



TOLMAN, Cyrus Fisher, Jr., 

COaWllitlsf Be tin If (.roliiKlst. 

P. ' i. Addi • a 
st an fonl University, Cal. 



WEBBER, Morton, 



^i i in- \ n Inn f ion n ml i >i-\ elopnseni 
: I i '..i tland St, New fork. 
*iii»le: Orebacka. 



WRIGHT, Louis A„ 



II in I ni; Knuliifrr. 

General I development Co., 
51 Broadway, New fork. 

Codi- Bedford McNeill. 



TURNER, H. W., 



Mlnlnu I :niiiii'-i-r. 

209-21(1 Ai.i.vka Commercial Bdg.. 

San Francisco. 

Cable: Latlte. Code Bedford McNeill. 





TURNER, Scott, 




Hlnfaag 


ii- i il' ■!■ r- 


Tromso, 

An t i-.'i-nal. 


N'orwav. 

Code: McNeill, isos. 



WELCH, R. Kemp, 






ConMiillliiK 






Miniiic nnil >Iet-lui nlt-nl 


K UK liu 


IT. 


Examinations, Repoi ts, 


develop 


nent. 


Fort Bldwell. < 


at 





WESTERVELT, William Young, 

Consulting >i i ii I ii u Engineer* 

IT Madison Ave, (Madison Square East) 

N. w York, 
Cable: Casewest Code: Bedford McNeill. 



YEATMAN, Pope, 



Mlnlnir Engineer. 

iGo Broadway, New York. 
Jable: Ekona Code. Bedford McNeill, 





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By T. 


A. RlCKAKD 


INI. Pages. 


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HEALD S 


SCHOOL OF 


MINES 


Bstab 1S63. 


Van 


Kens 


\* v. mill 


*«Ht St.i Nan 


l-'-aiii-l.cii. 


PR \<"l 


!< VI. 


TWO ye 


tit i in itsi: 


IN MINING. 


Special worl 


may 


be taken 


in Assaying, 


Cyanldlng, Metal- 


lurgy, in 


ifting 


Surveying and Genei 


al engineering. 


i ... i.ii 


i nil ill 1 


on iitlilrrnN 


c. E. iii:ai.d. ahki. sup). 



MICHIGAN 


COLLEGE 


OF 


MINES 








Located In 


the L 


ake Sup 


n lor 


mining district. 


Mines 


ind 


mills acce 


sslble 


for coll 




work. For 


Year 


Book . 


.nd 


Booklet o 


f VI 


■ws. address 


President 


or 


Secret: 


ry, 


1 [oughton, 


.Mill 


igan. 













UNIVERSITY OF ILLINOIS 

Department of Mining Engineering. Complete ore con- 
centration, coal washing, drilling and blasting labora- 
tories Just completed. Fully equipped mine rescue sta- 
tion. Address Dept. Mining Huglm-i-ring, Crhana. HHimis. 



MISSOURI SCHOOL OF MINES 

a department of the University of Missouri. Established 
in 1871. Four-year courses In Mining Engineering, Met- 
allurgy, Civil Engineering. General Sri.-no-. 

Address: Missouri School Of Mim-s. Holla. Missouri 



UNIVERSITY OF WASHINGTON 

College oi' Hlnea, Seattle, w«mIiIuk<oii. 

i .i.i I ami Metal Mining, Ore Dressing, Metallurgy. 
Special Courses for Mining Men, January i" April. 



MINING AND SCIENTIFIC PRESS 



July 4. 1!U4 



ASSAYERS, CHEMISTS AND ORE TESTING WORKS 



ILASKA. 

I. M 
■ II II OHM \. 

California Ore Test- 
In g Co. 

■"< k & Payne 
Walter L. 



Abbott A. 
Irving & Co.. James. 

Luckhardt Co., C \ 
Mlller-Farlsh 
Peres, Richard A 
Smith, Emery & Co. 

Wllke. R. M. 



COLOR VDO. 

Burton, Howard E. 

[■'rost. Oscar J. 
. Is. .1. \V. 
new ji:rsev. 
. I .over Labora- 
tory 



v e, h. w. 

NEW YORK. 

Ledoux ,t Co., Inc. 

n:\\si i.\ vm i. 
Ogden, John. 
Petrologies 

TEX tv 

Crltchett ft Ferguson. 



I TAIL 

Bardwell, Alonzo F. 

.wan Co. 
< ieneral Engineering 

Co . The. 
■ Ifflcer ft Co., R. H. 
Union Assav office, Inc. 

El ROPE. 
Griffith ft Co., Daniel C. 



ATKIN & McRAE, 

mlt and Meta llui . 
Control nnil Umpire kaoayv. 

Can i Ihemlsts. 

610 South Olive St.. Los Angeles, Cal. 



CALIFORNIA ORE TESTING CO., inders e. u.mind, Mnon^r. 

THE MOST COMPLETE ORE TESTING PLANT IN THE WEST. 

All t.-sis conducted under experle 6 supervision Write for booklel 

Office 630 Sacramento St Tee ting Plant KM Baj Si ■- : 1 1 I i ineleco 



BARDWELL, Alonzo F., 

(Successor to Bet ties & Bardwell.) 

4 iiMtom Assnyer and Chemist. 
W, Temple St, Salt Lake, Utah. 

< ii-.- S I ii [ > [ ■ . ■ r .^ ' Ak.'IU. 



BAVERSTOCK & PAYNE, 

IniliiNtrlnl Cbemlats anil AMHayem, 

| u ! CI Analyses of Ores. 

Minerals, and All < irganic Materials. 
823 W. First St , Los Angeles. Cal. 



GENERAL ENGINEERING CO., THE, ft m. .m.i.ow. it.»i.i..».. 

CONSULTING ENGINEERS. 

159 Plerpont Avenue. Salt Lake City. Utah. 
Design and Erection of all Classes of Reduction Plants. 
ORES TESTED IN SMALL OR CARLOAD LOTS BY AMALGAMATION, CON- 
CENTRATION, c'VAXIDATTON. MAGNETIC SEPARATION, MACQUISTEN TUBES. 
s. i,. I for our ORE TESTING BULLETIN. 



BIRD-COWAN CO., 

< Charles S < lowan, Manager. 

CiiMtom AMMiiyiTM nnil Chemists. 

Agents for Ore Shippers. 

160 S. \Y. T.-mpi- St . *:>][. hak-, Utah. 



GEORGE A. JAMES CO., THE, 



\nvivi;ks AM) CHEMISTS. 

Supervision of Ore Sampling, Technical Analysis, Cement Testing. 
No. 28-32 Belden Place (off Bush near Kearney), San Francisco. 



BURTON, Howard E., "SSiX* 

605 Harrison Ave.. Leadvtlle. Colorado. 

b: < iold, 50c; Gold and 

Gold, Silver and Lead, $1; 

-■■ ■. ei mil Copper, (1.50. 



LEDOUX & CO., Inc., 

ASSVYRRS, CHEMISTS AND METALLURGISTS. 

Independent samplers at the port of New York, 
resentattves at all Refineries and Smelters <m Atlantic s 
Office and Laboratory: 99 John S t r ■ - ■ ■ t . New York 



CRITCHETT & FERGUSON, 

\ Mayers and Chemlata* 

El Pas... T 

tnd Controls a Specialty. 



DRURY, 


L 


M 


i 




T 


, in 


ii :i 


kessij 


Onlce. 




■■.'ii 


•ba 


iks, Al 


i .-- k - 1 



ELY, E., Dover Laboratory, 

Aaaayer and Chemlat. Fees: Gold, 60c; 
Silver, ISc Copper, si. Iron Ores. Iron, 
$1: Phosphorus, $1.50; Sulphur, $1.75. 

■ i : McFs I i.i.n SI . i "-■'. er, X. J. 



FROST, Oscar J., 



Annhjit. 

511 18th St.. Denver. 



GIBSON, Walter L., 

Successor to 

I :i I Uriiil n ANNIiylDK Co., 

Aaeay Office anil Analytical Laboratory, 

BchOOl "f Vf*iHiiy|ng. 

824 Washington St.. Oakland. 
Phone S929. 
says and supervision of sam- 
pling Working tests of ores, analyses. 
Investigations of metallurgical and 

leal processes. 
Professor L. Falkenau, General Man- 
gi r ami Consulting Specialist. 



C. A. LUCKHARDT CO., 

(A. H. Ward, Harold C. Ward.) 

ASSAYERS AND CHEMISTS. 

Sampling of Ores at Smelters. 53 Stevenson St., San Francisco. 



Telephone. Kearny f.951. 



MILLER-FARISH COMPANY, wii.liam p. miller, M K r. 

KStVKRS, CHEMISTS AND METALLURGISTS. 

Ores Tested to Determine Best Method of Treatment. Mills Designed and Installed. 
532 Commercial St.. San Francisco. Cal. Tel. Sutter 5107. 



SMITH. EMERY & CO., lOre Teatlng Plant, boa A "tele™. I 

INDEPENDENT CONTROL AND UMPIRE ASSAYERS. 

Represent Shippers at Smelters. Test Ores, and Design Mills. 
651 Howard Street, San Francisco. 215 So. Los Angeles Street. Los Angeles, 



GRIFFITH & CO., Daniel C, 

Mwayen, MetnllurKUtpl nnd Samplers. 

8, Victoria Avenue. Blshopgate, 

London. EC. 

Cable: Gryffydd. Usual Codes. 



IRVING & CO., James, 

Gold Refiners nod AMHayem. 

107 X. Spring St.. Los Angeels, Cal. 
Cash for Bullion and Ores. 



OFFICER & CO., R. H., 

Assnyers ami Chemists. 

169 South West Temple Street, 
Salt Lake City, Utah. 



PETROLOGICAL LABORATORY 

\\ . Hnrold Tomllnson, 

Swathmore, Pa. 

Petrographlo Work. Rock sections made. 

Mis'Tosoopic examinations of rocks. 



RICHARDS, J. W., 



A.H.snyer ami Chemist. 

111S Nineteenth St.. Denver, 
-nippers' Agent. Write for terms. 

Rcpr.-sontativt-s at all Colorado smelters. 



UNION ASSAY OFFICE, Inc., 

Assay era and Chemists. 

Box 1446, Salt Lake City. Utah. 



HANKS, Abbot A., 




Chemlat and 


Aaaayer. 


Established 


1S66. 


Saci uaento St., 


Sun Francisco. 


!■•»] and Umpire Assays, Supervision 


of Sampling at 


Smelters. 


Cable: Hfanx. Code: W 


U. and Bed. McN. 



OGDEN, John, Metallurgist, Chemist. 

(16 yrs. Mgr. Ogden Assay Co., Denver.) 

Specialty: Platinum, Assays. Analyses. 

Rich Ores and Bullion Bought. 

906 Filbert St.. Philadelphia. Pa. 



PEREZ, Richard A., 

AMNnycr, Chemlnt and Metallurgist. 

(Established 1895.) 
12'J N\ Main Street, Los Angeles. Cal. 



YOUNG, H. 


w 


} 










Chemist 


mil 


Ansnyer 






Prompt 


attention 


to 


samples 


by 


mall. 




Box 


S4S 


K- 


no, Xev. 







WILKE, R. M., 

Mineralogist. 

Minerals and Rock Specimens Bought 

and Sold. Determinations Made. 

Box 812, Palo Alto. California. 



. fit 



MIMV. \M> » II Mil I- PK 



THE BRAIN PLANETARY PULVERIZER 

is simple in construction and just as easily operated as the regular 
Braun Pulverizer. Its superiority is due to the simple planetary 
movement imparted to the disc which adapts it for pulverizing 

All Classes of Material 

Whether-Hard-Soft- Talcy 

It is especially recommended for labo- 
ratories where a wide range of material is 
ground and tested. 

Will be found the most economical labor 
saving device in the laboratory, as it entirely 
eliminates the buckboard. 




PATCNl AP LHO ■ON 



Easily regulated for delivering any mesh product. 

Send lor Descriptive Matter. 




WRITE YOUR 
NEAREST HOUSE 



SAN FRANCISCO. U. S. A. 



BRAUN CORPORATION 



LOS ANGELES. U.S.A. 




If you figure the price of a drill on the footage it will Rive and the length of time that 
it will last, or its power of consumption, then the 

BUSY BEE HAMMER DRILLS 

are the cheapest you can buy. You will find that they will give you real economy no matter 
what the job. Their uses are numberless. Work in wet or dry rock — anywhere. There's a 
minimum expense for labor, power and repairs. Send for our bulletin now. 



McKiernan -Terry Drill Co. 



232 BROADWAY 



NEW YORK, N. Y. 



IANADIAN REPRESENTATIVES, Canadian Allls-Clialmers. Ltd.. Toronto. Ont. 
Itock DrllUi Core Drills, I'll*- Hammers, Ailu Jacks. 



75% 



3 out of every 4 CENTRAL STATIONS operating our 

DIESEL ENGINES 




have bought additional DIESEL units; and the amount of horse-power bought on reorder, by 
this 75%. is 155% of that acquired on first order. 

One, out of every four, has made 3 distinct purchases, each in a different year; and more than half reordered 
after 5 years of successful DIESEL operation. 

1C years of DIESEL building enables this company to offer an engine admirably adapted 
J to Central Station requirements — Regulation, Reliability, Economy. 

BUSCH-SULZER BROS.-DIESEL ENGINE COMPANY 

ST. LOUIS U. S. A. 



26 



MINING AND SCIENTIFIC PRESS 



July 4. liiH 



United States Smelting, 

Refining and Mining Co. 

55 Congress St., Boston, Mass. 

NEEDLES MIKING AND SMELTING COMPANY 

Custom Lead and Copper Smelters and Custom 
Lead and Zinc Concentrator at Needles, Cal. Ad- 
dress Needles Cal., and 908 W. P. Storey Building. 
Los Angeles, Cal. 

MAMMOTH COPPER MINING COMPANY 

Custom Copper Smelter at Kennett. Cal. Address 
Kennett. Cat. 

UNITED STATES SMELTING COMPANY 

Custom Lead and Copper Smelters at Mldvale. Utah. 
Address, Salt Lake City. Utah. 

SOLD ROAD MINES COMPANY 

Custom Cyanide Mill at Gold Road, Arizona. 

UNITED STATES METAL REPINING COMPANY 

Custom Copper Smelter and Electrolytic Copper 



Electrolytic Lead Re- 
Address. 42 Broadway. 



Refinery at Chrome. N. J. 
finery at Grasselli. Ind. 
New York City, N. Y. 

CIA. DE REAL DEL MONTE 

Mines and Mills at Pachuca and Real del Monte 
Address, Pachuca. Hidalgo, Mexico. 

UNITED STATES SMELTING. REFINING i MINING 
EXPLORATION CO. 
For Examination and Purchase of Metal Mines 
Address 55 Congress St., Boston, Mass.; 42 Broad- 
way, New York, N. Y.; W. P. Story Bldg., Los 
Angeles. Cal.; Newhouse Bldg., Salt Lake City. 
Utah: Edlflclo La Mutua 411. Mexico, D. F. 

INTERNATIONAL METALS SELLING COMPANY 
42 Broadway. New York City. N. Y. 

Bayers of 

ORES, MATTE AND FURNACE PRODUCTS 

Refiners of 

BLISTER COPPER AND LEAD BULLION 



The Consolidated Mining 

and Smelting Co., of 

Canada, Ltd. 

Smelters and Refiners. Purchasers of All 
Classes of Ores. Producers of Fine Gold 
and Silver, Base Bullion, Copper Matte, 
Pig Lead, Lead Pipe, Bluestone and Elec- 
trolytic Bearing Metal. 

Offices Smelting and Refining Dept., Trail, British Columbia 



The American Metal Company, Ltd. 

61 BROADWAY, NEW YORK 

Branch Offices: 



St. Louis. Mo. 
1411 Third National Building 

Ores and Mattes 



Denver. Colo. 
825 A. C. Foster Building 

Copper and Lead Bullion 



Mexican Representatives: Companla de Mlnerales y Metales 
Mexico City and Monterrey. 



SELBY SMELTING & LEAD GO. 

SMELTERS AND REFINERS 

Buyers of 
Gold, Silver and Lead Ores, Concentrates, Cyanide 
Product, etc., Lead Bullion. Dore Bars, Gold Dust 

and Bullion. 



CONSIGN ALL SHIPMENTS TO SELBY, CAL. 



Assaying of hand samples has been discontinued. 
Oeneral Offices: 

Merchants Exchange Bdg. San Francisco 

Eighth Floor 



International Smelting Company 

New York Office : 42 Broadway 

Purchasers of 

Gold, Silver, Copper and Lead Ores 

SMELTING WORKS — International. Utah 



REFINERIES: 

Raritan Copper Works, Perth Amboy, N. J. 

International Lead Refining Company, East Chicago. Indiana 



ORE PURCHASING DEPARTMENT: 
621 Kearns Building. Salt Lake City. Utah 



BRANCHES: 612 Paulsen Building. Spokane, Washington 



L. Vogelstein & Co. 

42 Broadway, New York 

Oeneral Agents 

United States Metals Refining Co. 

Chrome, N. J., and Graselli, Ind. 



Electrolytic Copper and Lead Refiners 

Sole Agents for 

Spelter of American Zinc Lead & Smelting Co. 

Smeltsrfl at Caney, Kan., ami Dearing. Kan. 



BEER, SONDHEIMER Ct CO. 

FRANKFORT-ON-MAIN. GERMANY 
BtiyCrS Of ZinC Ores Carbonates, Sulphides and Mixed 

— Ores, Copper Ores, Copper Matte, 

Copper Bullion, Lead Bullion, Lead Ores, Antimony Ores, Iron 

and Manganese Ores. 

Sellers °^ Spelter, Antimony, Antimonial Lead, Arsenic, 

Zinc Dust. 

Own Smelting and Running Works. New York Office, 61 Broadway 



WILDBERG BROS. 

Slneltera, Refiners and Purchasers of 

Gold and Silver Ores, Gold Dust, Bullion 
and Native Platinum 

Producers of Proof Gold and Silver for Aasayera 
OFFICE 410-419 PACIFIC BDG. SAX FRAXCISCO. 



ATKINS, KROLL & CO. SAN FRANCISCO 

Import Merchants. 

DANISH FLINT PEBBLES. SILEX LINING. CYANIDI. 

QUICKSILVER. MINING CANDLES. FIREBRICK. 

BORTS AND CARBONS. BLACKSMITH COAL. COKE. 

IMPORTED FUSE. SCHEELITE CONCENTRATES, T*%. 

SUPERIOR QUALITY ZINC DUST. 

Stocks Carried. 

Buyers of Quicksilver and Platinum, also Ores of Antimony 

Bismuth, Molybdenum. Tungsten, Vanadium, Zinc. etc. 






\!l\l\i. \M> m II Mil |t |'KI SS 




'iiiiiiiiiiiiiiiiiiiiiiiiiiiiiniiiiiiiir 1 



Hyatt Roller 

BEARIljULWHEELS 



Hull Roller 
B*«nag Cowp»o 



—-■■<— 




1 1 i / 



IU4 «i.k.,.. A.. . 
Ck„.,.. II. 



111111111111111 



THKVlTt MADE TO MEASURE 

Put man Boots 6 Shoes 

Goon like a qlove*'"' fit all over. 





I'uttnsn Boot* arc the oldest and best known boots for 

Civil and Mining Lngineers. They aie sold all over the 

world and '»»»'«■ lustly earned the slovan "The World'* 

Standard.'* Mnde-to measure, water proofed or not. 

•njr weight of uppers or so!es. '.ll heights, a variety 

ai styles and price* that you will find satisfactory. 

Made-to-Measure Shoes 

Putman Shoes have a perfect fit. the best of everything in 
quality, style that is "up-to-the-minute" and that custom* 
made-individuality so much sought in all wearing apparel. 
Lace. Button or Oxford styles. Black and all the popular 
shades of Tan Leathers. Ever> thing from the lightest 
Vici Kid to Heavy English "Hiking" Shoes. 

Our FREE CATALOGUE is sent upon request. It 
is different from any other and will interest you. 
Self measurement blanks and full instructions free 

PUTMAN BOOT A SHOE CO. 
118 5th St. N. E. Minneapolis, Minn. 



MARATHON MILL 

GUARANTEED TO BEAT All 
OTHERS. Really grinds twlcfl 

as much coarse bo four 

.1- much I'm 

B on conditiom \ 

Inch to 200 Mesh Discharges. 

NEW GOLD SAVING HEADS. 

Guaranteed to beat all others 

gnld Inside the mill. 

\\rit<' for grinding tests 

'Patented ftII,i particulars, 

ROCK CRUSHERS. MINING AND MILLING MACHINERY 

JOHNSON ENGINEERING WORKS 

FIRST NATIONAL BANK BUILDING. CHICAGO.!!!. S. A. 




E. F. Hutton & Co. 

Bonds 

Members New York Slock Exchange 

490 California St., San Francisco 



J. C. Wilson & Co. 

Member New York Stock Exchange. New York Cotton 

Exchange, Chicago Board of Trade, 

The Stock and Bond Exchange, San Francisco 

Haln Office I Mill* IIiIk., Sun FranuUvu. 

Branch Offices: 

I .os Angeles, San Diego, Coronado. Cal. Portland, Ore. 

Seattle, Wash. 

Private Wire, Ohlongro, New York. 



LIMA LOCOMOTIVES 




UUf .hop tan .■ I. tlicmiii.'iiu lrii.,,1. well OmnlMd. 
nm! km* lh<> i.ii.-»i tiH>lt and appliance. The rt-.nii I. 
that oui loooraollTM aro aa noar |*-rfr. 1 a. 1, |.<*alt>lt.. 

M mi 1 OR 1 \ 1 AJLOG 

LIMA LOCOMOTIVE CORPORATION 
III \Y. SECOND ST., LIMA, O. 

... h M .. s, « York. 



WATT STEEL CARS 




For MINES 
and SMtL'lERS 



"ur catalog shows 
in ;i n y In teres tin g 
types. Wrile fur it 
today. 

The Watt Mining 
Car Wheel Co 

Barnesvllle, Ohio 

Denver: Undrooth. Shubui 

a Co. 
Mm Francisco: n. D. Phi Ipi 




E IN HEART OF CITY 



HOTEL SAVOY 

SEATTLE 

"Twelve Stories 
of Solid Comfort" 

In the centre of things- 
theatres and stores on both 
sides. Building absolutely 
fireproof — concrete, steel 
and marble. 

European Plan — $1 per day up 
With Baths — $2 per day up 



WANTED — .SECOND-HAND A>l ALAGAMATING PLATES 
AND QUICKSILVER. We buy precipitates, amalgam, fine 
and base bullion, scrap platinum, high grade gold and silver 
ores and material containing the precious metals In any 
amount, form, or condition. Send details or sample and we 
will nuote prices. 

THE METALS BUYING AND REFINING CO., 
210 Ban FrunclNCO St., El TaHO, Texan. 

references: First National Bank, Mine & Smelter Supply 
Co., El Paso. 



Great Western Smelting & 
Refining Company 

Spear and Folsom St.. San Francisco. 

Babbitt Metal for all kinds of service requirements. 
We buy all classes of scrap metal. 



28 



MINING AND SCIENTIFIC PRESS 



July 4. 1!)H 




LOCOMOTIVES 

AND CARS 

/or Mines, Smelters, etc. 
Electric Cars 

Switches. Froes. and Equipment. 

THE ATLAS CAR 6 MFG. CO. 

DEPT. K, CLEVELAND, OHIO 



iCm0nrti JBriliUtg dfo. 

PLACER PROSPECTING AND EXAMINATION WORK 



WATER WELL8 DRILLED 



BALBOA BLDG. 



8AN FRANCISCO, CAL. 



BLAKE, MOFFIT £ TOWNE 

DEALERS IN PAPER 

37 TO 45 FIRST STREET, SAN FRANCISCO. CAL. 
BRANCH HOUSES IN LOS ANGELES AND PORTLAND 



GOLD DREDGES 

Extensive Alaska and California Experience. 

UNION CONSTRUCTION CO. 

H. G. PEAKE 604 Mission St.. San Francisco. Cal. W. W. JOHNSON 




Mining Filter 
Presses 

WM. l PERU 8 CO. 

CHICAGO, D. S. A. 
TORONTO, CANADA 



TRAMWAYS 

For all transportation purposes. 
Twenty-five years' practical experience. 

PAINTER TRAMWAY CO., of San Francisco 

305 FIHST STREET. SAN FRANCISCO 



TICrn MANGANESE 

I lO^VJ STEEL CASTINGS 

FOR SEVERE SERVICE 
TAYLOR-WHARTON IRON & STEEL CO. 

High Bridge, New Jersey 



lErHANi brand THE PHOSPHOR BRONZE SMELTING GO 

3200 WASHINGTON AVENUE. PHILADELPHIA. PA. 

ELEPHANT BRAND 'SXJ/AJ8L&' 

INGOTS. CASTINGS. WIRE. SHCETS. RODS Etc. 

yrffllV -DELTA METAL - 

-LS-i. IN t?«RS FOR FORGING AND FINISHED RODS 

... ntrc ncn.u.. -_. .... . 




Frenier's Spiral Pump 

THE MOST DURABLE FOR 

SUMES, TAILINGS, BATTERY SANDS, ETC 

AGENTS 
AUtl I hftlmtTs ro. Stearns RoKtT Mfu. Co. 

(.'hirnitii. 111. Denver. Colo. 

Harrt'ti. Kifkiirfl A UoCone, San KtancIaoo.Cal. 

Prank R. 1'errot. Perth, W. Australia. 
FRENIER & SON. Rutland, VI. 



ALBERGER MINE PUMPS 


fr% 


With' ent Lfuga) Pumps, whether of theTur- 
bln> or Volute Type, the name of \)' erger 

is a guarantee of max inn i in service and niin- 
iinnin operating expense. Write for Bulletins. 
ALBERGEB PUMP AND CONDENSER COMPANY 

140 Cedar Street. New York 
Atlanta Boston Chicago St. Louis 







PLACER GOLD AND SUCTION DREDGES 

YUBA "BALL TREAD" TRACTORS 
YUBA CENTRIFUGAL PUMPS 

We represent the Bucyrus Company for Placer Dredges 
on the Pacific Coast, Alaska and the Orient. 

THE YUBA CONSTRUCTION CO. 



WORKS : MirysvUlo, Cat 



SALES OFFICE: 433 Calliornla Su San Francisco 



REDWOOD TANKS 

FOR 

Mining and Milling Plants 

Long Lite and other SuperiorQualities make 
Redwood the Best Lumber for Tank Purposes. 

Address Dept. T. REDWOOD MANUFACTURERS' CO. 
811 Kohl Bldgr., San Francisco 



Mining Engineers' Examination and Report Book 

By CHARLES JANIN 

In Two Parts $2.50 Postpaid 

DART I is a handbook covering examination of and reporting upon mines 
1 and mining property. Part II is a skeleton report, serving three pur- 
poses: First an outline of a model report; Second, a field notebook; or 
Third, a blank form on which the final report may be submitted. 

Published and for sale by the 

Ml!?!NG AND SCIENTIFIC PRK33, 420 MARKET ST., SAN FkaM'imm 



RIBLET TRAMWAYS 

Automatic, High Speed, Lock Coil Track Cables, Railroad 
Type Trucks, Pony Trams for Light Tonnage. 

RIBLET TRAMWAY CO. 

SPOKANE, WASH. NELSON, B. C. 



DIAMOND DRILLS 

Hand Power, Horse Power, Gaso'ine, Steam, Air 
and Ele?tricity. Complete line. Send for catalog. 

STANDARD DIAMOND DRILL COMPANY 

745 First National Bank Bdg., CHICAGO, ILL. 



BACON v FARREL 

ORE fr ROCK 

CRUSHING x WORLD KNOWN 

ROLLS-CRUSHERS 



. l'lll 



MINIV. \\n SCIEN1 II II I'KI SS 






A. LI 



It \ 



. HOP* 
All PURPOSE 

A SONS ROT! 

I . I 1)1 IS. •'( 






^ I »•• !■» n Id,,, r ■ 



Don't Buy a Gold Brick! 

Buy h Pierce \nuUgunmtor anil muke poui own gold 
brink* hricka thai you o&n rash, too. 

Write to-day for 
Catalogue No. 10. 



L. S. PIERCE 

I11S Broadway 

DENVER. 
COLO. 

I). S. A. 



Pierce's Amalgamator is only a common-sense scheme to 
accomplish the complete recovery of the Hour and heavy 
rusty gold in your ore and to save all losses in quicksilver. 




Pitch Into Us 

whenever you wanl a new 
gear or an old one dupli- 
cated right quick, W< 
geared up for Past, accurate cutting and run all 

the time. Vou save tune, L'<t u. I gears and real 

service if you will pitch Into us fur 
[fa 




gears. 



your lead ' 

Pac if ic Gear & Tool Works *J 

1035 Folsom St., San Francisco, Cal. tyl 





"The Coupling That 

Never Blow* Off." 

rhfl baWl mill ObcapMt coup- 
ling made for connecting air 
und steam hose to rOOk drill*. 
All parta are standard sin und 
will Interchange with parta of 
<ither makes. 
Made to lit all sizes of hose 

V to Zhi" Inclusive. 
Will not Injure tube or cover 
of hose and a channeled lip on 
end <>r item prevents loss of 
washer — exclusive feature of 
<>ur coupling. 

Stock carried In Chicago, St LouIb. 

Denver, Bait Lake City, Ban KrancUco. 

I'ortlntnl. Bi attle. Bpakano. Bnfte. 

Write lor catalogue and prices. 

Manufactured only by 

MULCONROY CO., Inc. 

723 Arch Street Philadelphia. U. S. A. 



FLORY HOISTS 

STEAM AND ELECTRIC 




are adapted for all 
kinds of work. Made 
In all sizes. For Mines, 
Contractors. Quarries, 
Dredging. Cableways, 
Slate Machinery 



S. FLORY MANUFACTURING CO., Bangor, Pa. 

SALES AGENT 
A. L. THING MACHINERY CO.. >»■ Fraud.... Cal. 



ROBINS 

CONVEYING 




Conveying, Elevating, and Hoisting Machinery. Evory 
engineer will be glad to read our bulletins on belt and other conveying 
and material handling machinery. Write for copies. 

Robins Conveying Belt Company 

General Offices: B Park Row, New York 

Chicago Office : Old Colony Bids. Spokane : United Iron Works 

San Francisco: The Griffin Company. Toronto: Gulls. Percha 6c Rubber Ltd 

Glasgow, N. S. : Eastern Steel Co., Ltd. 



THE USE OF THE MERRILL IS NOT RESTRICTED 
TO SHOP PRACTICE 

This mkkheli, is Uteralli two ma- 
chines; one ii portable hand or power 
driven machine, the Other stationary 
hand or power driven. In bolli 
MEBRELL gives absolute Batl 

In shop, mine, or in the Held, the 
UERREL Lb best bj overj test, 

We ask you to test It oul In your own 
works, and at our expense. 

VVr te us for full particulars ol « Das 

Ire.' Trial! 

(Jet catalogue B--I. 




The Merrell Mfg. Co. 

10 Curtis St, Toledo, Ohio 

Machines carried In stock In San Fran- 
cisco, Portland, Seattle, Denver 



Slime and Gravel Pumps 




MANGAHESE LINED SANO PUMP 



Our Mniif/u/i' ,sr Sfr, t 
Lined Sand Pumps 
are built for extra 
hard service. It Is Im- 
possible for sand or 
travel to grind on any 
portion of the pump 
other than that which 
Is wholly protected 
from wear by a lining 
of the hardest Man- 
ganese Hteel. 



SEND FOR CATALOG No. 25C. 



Byron Jackson Iron Works, Inc. 

357-361 Market St., San Francisco, Cal. 



LOS ANGELES 
212 No. Los Angeles St. 



WORKS 
West Berkeley. Cal. 



30 



MINING AND SCIENTIFIC PRESS 



.Tulv 4. 1!)U 



W^^i 


H ^ ' ^"Ir ; 


'4 




*Jir' 


1! 

it* m . 






>*" 


t-^*~ ' ■ i^tftfH 


^ 


^j 


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7 


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HOMESTAKE PIPE 

Not a drop of Leakage in this 12,000-foot Installation of 

Lap Welded and Spiral Riveted Steel Pipe 

when 286 lbs. working pressure turned on at the Home- 
stake Mining Co., Lead. S. D. 

Catalog Lap-Welded Pipe (Large Diameters) and Spiral- 
Riveted Pipe mailed on reQU 

AMERICAN SPIRAL PIPE WORKS 



SO Church St., Nciv York 



CblcuKO. III. 



NORDBERG 



NORDBERG 



Hoisting 
Engines 



ffl 



Air 
Compressors 



MACHINERY 

Universally Recognized as the Best 
NORDBERG MFG. CO., MILWAUKEE, WIS. 



New York. \2 Broadway 
Globe Aril. 



Chicago. Fisher Bldg. 
Butte. Electric Bldg. 



RADIUM 



PRODUCTION 
AND USES 



By SYDNEY FAWNS 

00 iJiiuri. IlluHtrnted. Cloth, $1.00 postpaid. 

CONTENTS: History, Appearance, and Energy of 
Radium. Radio-activity of the Earth, Sea, Air, and 
Sun. Description of Radium Rays and Emanations. 
The Uses of Radium. The Occurrences of Radium 
Ore. Extraction of Radium. Appendix. Bibliography. 
Index. 

For Sale l>y the 

MINING AND SCIENTIFIC PRESS 

420 Market St., Sao Frnncinco. 



LUNKENHEIMER 
CYLINDER LUBRICATORS 



An exceptionally large line of 
Steam. Gasoline and Air Com- 
pressor Cylinder Lubricators. 
Hydrostatically or mechanically 
operated. 

In addition to the above, the 
large and complete line of 
Lunkenhelmer Specialties con- 
sists of Bronze and Iron Body 
Bronze Mounted Globe, Angle, 
Truss. Chock, Throttle, Gate. Non- 
return Boiler Stop, Lever, Pop 
ty, Relief, Blow-off, Screw Down Cheek Valves. 
etc.; "Puddled" Semi-steel and Cast Steel Valves of 
ail types; Water Columns, Gauges and other Boiler 
Mountings; Whistles and Ground Key Work of all 
descriptions; Injectors and Ejectors; Lubricating De- 
vices, Oil Pumps, Oil and Grease Cups; Gasoline En- 
gine Appliances, etc. 
Your local dealer can furnish (hem; if not. write us. 

A complete description of the entire line can be 
had by referring to Lunkenhelmer No. 50 Catalogue. 
"Write for a copy. 

ui£ LUNKENHEIMER co, 

"QUALITY" 

Largest Manufacturers of High Grade 

Engineering Specialties in the World. 

CINCINNATI, OHIO. 

New York — Chicago — Boston — London 




"Safety first" 

C-?-^r^g tyr Seal tlle J° int of tne cap 
3\ byr and safety fuse and reduce 

"Ps "misfires" to a minimum. 

CELAKAP 

should always be used when blasting 
in wet or damp places. 

For Triers, etc, apply to your Powder Company or Dealer. 

Coast Manufacturing and Supply Company 

LIVER MORE Distributers CALIFORNIA 



COAST. 



First Aid in Mining 

By LOUIS G. IRVINE 

113 puses. Fully Illustrated. Pocket •lie. Paper. 
(10c. pOHtpnld. 

Contains specifications for emergency stations and first- 
aid equipment; rules for the treatment of wounds, bleed- 
ing, burns, sprains, and fractures; methods for the trans- 
port of Injured men underground; treatment of accidents 
due to poisonous gases, electricity, and cyanide poison- 
ing; working drawings of the Red Cross plank stretcher; 
methods of artificial respiration; and other Information 
of general interest. The subject-matter relates particu- 
larly to metalliferous mines. 

For sale by the 

MINING AND SCIENTIFIC PRESS 

•120 Market St., San Franclaco. 



, I'M I 



\1I\IV. \M> m II Mil I. PRI 







Five Points ol Efficiency 
< oinblned In the Powell 
Hydraulic Gate Valves 



© 



l Body ■ymmetitcall 

and well proportioned. MetaTdla- 



© 




IriblltCd ' ■ meet th, ni'-sl wear. 

i nion bevel ground joint 
connection between body 
bonnet 

:. Red lead or oemenl unneces- 
sary to nuke II Light. 

1. They have renewable White PowelUum Bronxe 
Discs, ball and MM-k.-t back, Bmooth-worklng — « - 1 f - 
adjusting. 

:>. All working parts made to gauge and are Inter- 
changeable, fasted and Inspected before shipment. 

They Take Prcmure Either Way 

A-kyour Tme/\Wm Powell Co. 

--ENDA9LE Chgincibins SPtCIALTlES 

CINCINNATI 



ifevler lor 
Powvlt Valve* 

or write u« 



Hydraulic Giants 

We carry a complete 
line of 

Hydraulic Giants (Monitors) 

Deflectors and Extra 

Nozzle Tips 

Write for our Illustrated Circular and 
Price List 

Seattle Machine Works 

(INCORPORATED! 

37 to 51 West Lander Street 

SEATTLE, WASH. 



THE LANE MILL IS 
A SLOW SPEED 
CHILEAN MILL 




THE SLOW SPEED • operation using a v. ■ 

• •it, mn »■ «■» , l];il| .,„,„„„, ,,, power. 

makei the com of malnti nam e 
low. 

rendei ■ it possible to operate 
nltboul screen ■.limn- 

ing this aspen 

causes very little agitation, 
thereby Increasing the extrac- 
tion by amalgamation 
—lessens danger of accidents 

leading to breakage. 
—Insures the delivery of a Une 
and even product at a low 
cost. 
The Lane Mill Is made in several sizes, some of 
which can be sectlonallzed for transportation on pack- 
animals. Send for our new Catalog No. 7 and data 
regarding work at plants where both Stamps and Lane 
are operated. 

LANE MILL & MACHINERY COMPANY 

236-247 Douylas Building, Lo» Angeles, California 




Over 100 Placer Dredges 



have been designed and built by the liucyrus 
Company— more placer dredging machinery 
than all the manufacturers In America com- 
bined have built. When you get a Bucyrus you 

net an experience as old as the industry. 

We a'io make all types of shovels, dredges 
and dragline excavators. Send for catalogs. 



New York 

NVJl-l 



BUCYRUS COMPANY 

P. O. Box O, South Milwaukee, Wi». 



e 



Chicago 



Duluth, Minn. 
San Francisco 



Blrmlngnam. Ala. 



12 



MINING AND SCIENTIFIC PRESS 



July 4. 101-1 



STAR PORTABLE 
DRILLING MACHINES 

Built In many sizes both traction and non- 
traction, for drilling all depths to 4000 feet 




Equipped For Steam, Gas or Electrical Power 

For Water Wells — Oil and Gas Wells — Mineral Prospect- 
ing — Railroad and Canal Excavations — Cement and 
Crushed Stone Quarries — Bridge Soundings — Coal Mine 
Ventilation — Irrigation, Etc. 

Write for Illustrated Catalog. • 

The Star Drilling Machine Company 

General OHIces : Akron, Ohio 

Branch Office : 2 Rector SL, New York City 

Works : 
Akron, Ohio — Chanute. Kansas — Portland, Ore. — Long Beach, Cat. 



For All Filtering Requirements 

THE KELLY 

"FILTER PRESS 

IS MOST EFFICIENT AND RELIABLE 

Acid Proof Filters and Special 
Filter Cloth for all uses. 

Filter leaves entirely accessible. 

Low labor costs. 

Dry cakes dumped. 

Especially adapted for drying 
oil flotation concentrates. 

Send for list of new installations and 
description of our latest machines. 

Kelly Filter Press Company 



207 Felt Bldg., 



Salt Lake City, Utah 



E. E. LUNGYVITZ, 80 Maiden Lane. NEW YORK 




SAVE 

TIME AND MONEY 



BY USING 



Blasting Machines 



s 17 VERY day more blast- 

.chine ■■— ' ine is being done with 



electrical blasting machines. 

WHY? 

Because several bore holes can be fired at one 
operation. Such action dislodges more mate- 
rial than miny single shots. 

Less drilling and loading is necessary when electrical 
blasting replaces single-shot methods. 

Put this new improved, powerful, strongly made Xo. 
5 Blasting Machine to work. It's a time and money 
saver, and lessens blasting accidents. 

FOR SALE BY ELECTRICAL 
SUPPLY HOUSES OR BY 

Du Pont Powder Co. 

Established mi 
WILMINGTON, DELAWARE 



You Will Make No Mistake 

in equipping your Belt, Bucket, or 
Pan Conveyors with the 

Merrick Conveyor Weightometer 




It will automatically record, in any unit desired, 
the actual weight of material transported — with a 
guaranteed 

ACCURACY WITHIN 1% 

Write today for descriptive catalog 
and further particulars. 

MERRICK SCALE MANUFACTURING CO. 

PASSAIC, N. J. 



.luU I fill 



\1I\IV. \M) m II. Ml! |i 1-KI -- 







PELTON WHEELS 

ii.n .■ bi t-n the standard drive for compressors the last 
quarter century. For modern plants, the new water 
saving devices and quick regulation of the present day 

PELTON-DOBLE WHEEL 

makes It the logical choice where reliability and economy 
are the deciding features of the Installation. 

are many Pel ton wheels In operation that are more. 
than twenty years Old. Kurt her more, these wheels are 
doing the work required <>f them with the same regu- 
larity as when originally installed. Do you want this 
kind >>r service? Then let us tell you more about 
Pelton-Doble equipment. 

The Pelton Water Wheel Company 



West Street. 
New York.N. Y. 



2229 Harrison Street 
San Francisco. Cal. 



^he onl 
.you can 



y Roofing 
afford to i 



use 



Chicago Pneumatic Compressors 




WE HAVE THIS COMPRESSOR 

in San Francisco Stock, 

IN ALL SIZES 

Also Single Stage Compressors, Chicago Rock 
Drills, Stoping Drills and Plugger Drills. 

Chicago Pneumatic Tool Co. 

Address N. E. OTTERSON 
71 First Street, San Francisco w 



i -...- ill,- roofing prnbli ta fairly nml equarel) 

-nine 
ooatlng? n.i matter how Utile you pat inr sm-ii 
ii ioo8ng ii n I,,-. rxprnHlvc pro|>aeluon In the 

lona run In I (■ ■« >■ »,. x ,,i, r bllll fo 

■■'(I repair* will amount lo more than the orig- 
inal o 

Itoofln :> apt naeends for all time when you uae 



J-M ASBESTOS 



- the last row, Being all mineral, h « < ntilni 
nothing i" r..t. nm or deteriorate, in tn] wai Hi :■■ 
rjuln - coaling <>r graveling 

baste* (torh > loll cemented, tayei <- \ 
Upbalt 

ng l» lowor in firoi cost tl igflve, 

iin or slate snd cheapor than »'l other toolings "ii iln i 
■ - excellent Bn 
-i \i Roofing 4 louts. packed In each roll, make absolutely 
watertight seami and give the entire rool ■ handstme white 
appearance J-M Roofing also oorn it In built-up fonn. 

Bold direct h sour dealer can't supply you. Wenroalto 
prepared t«i tarnish J-M Regal Roofing which, although low 
in price, i- the highest grade rubber ro tflng "ii the markel 
Write our nearer! bit lalog. 

H. W. JOHNS-MANVILLE CO. 

New York 

PI ladelphla 
Pittsburgh 

S'ui Frai ■ 
Beattle 




Albany 

Baltimore 

;:. ii 

Buffalo 

Chicago Detroil Louisville 

Cincinnati Indianapolis Mllwai I i 

Cleveland iKansasCitii Minneapolis Si Louis 

I'nliu- Loa Angeles Sow Orleans Syracuse ■•<".; 




Ventilating 
Fans 

run co tinuously with practically 
even load. Tlie perfect lubrication 
■ * fan beamings can be automatically 
-ecured at a saving over oil or inin- 
"■al grease of from 40 to 9U';i with 

Albany 
Grease 



We will be gjad to send you a suffi- 
cient quantity of Albany Grease to- 
gether with an Albany Cup for test. 
You can determine the efficiency and 
economy secured on your own fan 
Our book on Friction is Instructive 
Write for it. 

Your dealer sells Albany Greasy — 
if not order direct. 



Albany Lubricating Co. 

Adam Cook's Sons, Props. 

« 708-10 Washington St., New York 








MINING AND SCIENTIFIC PRESS 



.lulv -1. 1914 



Prescott 

Mine Pumps 




Ynu cannot afford tn experiment In your mine with 
pumping machinery that has not been designed with 
a full knowledge of what Is required In underground 
work. 

Mine pumping machinery must be equal to any 
occasion that can possibly arise, and the failure t<> 
take care of sudden excess conditions may mean the 
loss of your mine. 

The use of the ordinary commercial pump in mine 
work Is a chance vou cannot afford to take. 

PRKSCOTT Pumps are essentially MINE PUMPS. 

They are built with the necessary margin of safety 
and reliability which insures your mine against ex- 
pense or loss through shut-down or failure. 

Mine Pumps are our specialty. 

Catalogue P-32-S2 on requent. 

Fred. M. Prescott Steam Pump Co. 

115 Broadway. New York. Works: Milwaukee, Wit. 

Branch Offices in All Principal (iii. .- P171.S 



Wire Rope 

Made from thoroughly tested wire in 
accordance with designs developed 
by the experience of many years. 




JOHN A. ROEBLING'S SONS CO. 

OF CALIFORNIA 



SAN FRANCISCO 
SEVTTLE 



4-OS ANGELES 
PORTLAND. ORE. 



THE LARGEST STOCK ON THE PACIFIC COAST 



Jeanesville Centrifugal 
Mine Pumps 




Thoroughly Modern in Design 

Applies to the whole line of Jeanesville 
Mine Pumps. Built on methods of tested 
value. Strong and reliable always, yet as simple 
as possible consistent with the work demanded 
of them. 50 years of experience is at your com- 
mand if you will write us your pumping needs. 

Write loronr new Uine Pump Cataloguo J MMC 

The Jeanesville Iron Works Co. 

Works, Hu'eloo, Pa. Ne» York Office, IIS Broadway 

BBAKCB OFFICES IS ALL PRINCIPAL i'ITIKs 



SMOOTH -ON 



Send for our new 
No. 15 instruction book 

Every Smooth-On user should 
have a copy of this new book 
at one 2 It tells precisely how 
to use the eight different 
Smooth-On Iron Cements. 
11 will save you time and 
money. 

SMOOTH-ON MFG. CO. 

Jersey City, N. J. 



Smooth-On 

instructkwbook 



-:■■ Pnuudsco. Oal. 

„i N leflenon street 
ih cago, 111. 



lull I I'M I 



\ii\iv. \\n >. ii mii i. I'm ss 






DEWEY, STRONG &Ca 

PATENTS 

• II < r«.krr I.IUl.,. Su r.»r«r. 
|-\ I I \|. .nil IIMIII i\ t|| |,M Mllll ' 





\\ r Mill utall itlilii.ui aaaafffja, 
r'a.ra... Iritilriuirk*. Mil. I ton 
«"•«• ml mn-hiilial tiHiiruiraia. 



■ii rr«|u«-at. inir IUniH<»»h as 



Am amg f«W p al ta tt n om t bt ofthrtmd thnmyh ..»,//.» M- 

fou-lny dr. icorMv of ,)»,i,il •ifiilim, 



.. I ■ 1 ■ . 1 .. 
-. litK CO* 

said >i 

i- mill 1.. 
■I hi .Ith.r ..t ii- i» ih.. ,,.,.. 

ifl >« "f tin 1 iamb, of th. doorway. 



OH n.v.-TKici.N.: Uiiii..,,, 8 Pride. Thin ln- 

x, ' ntl,,tl > device r-.i forming and pi iihk ih.- 

ilia 






ii.i tin v 1 1 : VALVE 
llili Invention la lo provide .. ■Imple," compact, cheaply 
manufactured, ea.ll) operated valve for udmittinK auxiliary 

ih.- Intel ni.uiif..i.i ..r a mii. .-iikIii.- 



-J.iim J. Ifurphy. 






> . \ -- I i i : N crl i: Hall, n la u bjects 

••' ''"■ preaenl Inventl provldi a k.k furnace In which 

ncy of ii... heat nulls produced 
ibuatlon ..r the fuel may be had. 



BARBER POLE ii.. v. I O. H ri i» the o 

-■ nt Invention to pi barber i-.i 



r->. ». ... . . . . .- 1. . .. . ■ i ... |.i 
•iini: mIkii. Involving it 



. or ..t her h.i- 
member which mo 



v.....«ui>- mikii. in\.t|\ll)K ;l mOVeaOIC lll.-lllhrr Wlli.'ll ||lli\ !<• 

■i a-ltli suitable ..i divert colors, and to c bine 

with auch ii pole an electric IIkMIiih aystem, the movable 
member ..f the situ and the i tcm. which may In- 
clude Ilk-lit* ..f viui. .ns colon being itrolled and ■ ■■ 

■ in. .ii h.-iii ce >.f poll 



tt'oplem of any of the nl...-.- f urnUh.-.l for 



FOR 


SALE- 


AT A VERY LOW PRICE 


^ 


i i \i: r. r » 1 


I Tl( A \ lull •• \ 


■■ I ^ i'i: ROLLS 


In exi 

rolls are b 

lateral adju 


•n. Practically as 
i by rolls 

0. the s;iiii. 


good us- new. These 
with i natlc 
build. 




1 It \ 1 Milt 


i:\|iI\i:i:iiim. 
AUeaton n. Pa, 


.v MPG. CO. 



For Sale, Cheap 

SECOND HAND SMELTRR MACHINERY 

All In ' I Condltloo 

\—20"xZA"\i2" 300 H.P. Cross-compound Corliss Rn- 
glne. 1 — 150 H.P. Babcock-Wilcox Boiler. 1 — 100 H.P. 
Babcock-Wilcox Boiler. 5 No. 7 Cycololdal Conneisville 
Blowers. 1 — 13"xl2" 60 H.P. high speed engine. 

Prices and full Information on request, or can be in- 
spect -"d at Keswick, Shasta County. Cal. 

THK MOUNTAIN cofper CO., Ltd. 
.132 Pine St., Snn Frnnclnro. Cnl. 



THE DENVER QUARTZ MILL & 
CRUSHER CO. 

Manufacturers of Rock Cnmhers, Ore Feeder* and all kinds 
of Ore Milling Mnohlnery, Especially the Denver Quartx Mill. 

The best type of Chilian Mill on the market. 

Attk for entnloe No. 10. 

216-217 COLORADO BDG., DENVER, COLO. 



DIVIDEND NOTICE 

ih.- Genua d Saving*, umi Loan Society. 
526 California Street, San Francisco. 

For the half year ending June 30, 191*, a dividend has 
been declared at the rate of four ii> percent per annum 
«ti all deposits, payable on and after Wednesday, July l. 
1914. Dividends nol called for air added t" the .ii-puxit 

account ami earn dividends fr July 1. 1914. 

GEORGE TOURNY, Manager. 



POSITIONS 


WANTED 


l Don. >-t advertising for positions vaoti I !>•' 

llllrl lion 

■ 
ardai 



■ 

KIV1 ■ in. it i 

w "i k . 

It \ . I..|-m. nl ..I i |t..< 

PRACTICAL !'I;\ITSM\.\ \M. \u. iiw 

h .i I .ii a* Ing i<> do 

i .. \i .. .... i 

M I N i: i i -I; i:.\i A \. l<>i ■ 

Mining kind Si lent llli i 

■ 
nilltliiK. (.melting, and cyanide treatment, dfi 

dent with IQ inagi t divided betwoon two larg< 

n of tin Ri public •■! Hex Ii ■ 
manager or englneei with responsible minlni 
Inn preferably in South America; read, write, ami Hpeuk S| 
fluent!} ectly; thoroughly famlllui with laws and 

loin*, ami claim ability to attain IiIkIh-.-i 
working the La tin -American race*; age 10; health robust; mini 
mum salary acceptable, 96000 r. s, cy per year; best refen 
Boi 806, Mining and Sclcntll c Pn 



CYANIDING AND MECHANICAL ENGINEER o r 

gagement; l»"> years exporlenci United Stati M< tlco, 

tral America; have made speclalt) of 

win K" anywhero. Box ■■'•\. Mining and Scientific P 

MM.L SUPERINTENDENT, B years practical e: p 
Cnlted States and Mexico, now with c pany In Mexico, 

on in i 'nit- d la ble September I, Bo 

MiniiiK ami Scientific i *i 

GRAUATE mt a i ii k and mechanical engineer desires position 

inager or superintendent; long experience in all branches 

of mining with progressive and successful companies; at pres- 

t m with large company I it Spanish America where the latest 

lis of mining, milling, and cyanldlng are practiced; sx- 

mii).- and planl economies. Box 359, Mining and 

■ri- pn as. 



SUPERINTENDKNT desires position: ::» years .-xperlence In 
Kold mines; specialty, construction of mine and mill structures, 
tramways, eta K"\ 816, Mining and Sclentli.c Press. 



HENRY B. LISTER. 

Attorney nt Low 
Notary Public and Commissioner of Deeds for New York, 
805 Pacitlc Bdg.. Fourth ami Markel Streets, San 1 









WANTED 






E 


iulp 


lH'Ilt f'l 


in traii. .11 plant ; 


capai 


lty ah. .hi 50 


Inns 


t.i 


(.insist 


nf a rotary mill, with 


;i utomatlc reeder, 


two 


or 


three 1 


tncenl rating ta bles, c 


assltl 


•r. dlstl 


eng 


m . 


tanks, s 


haftlng, pulleys, belling, et 


v\ll must 


be 


I 1 ■ ■ .ill tl.'S 


gn and In a I condlti 


Ml. ' 


Ive full par- 


tlcu 


a is 


and qu 


>t.- pri.'.'s delivered at 


San 


Francisco or 


Los 


A n v. 


•les, Address Box 369. Ml] ■ 


Hi Sc 


entitle l' 1 - 











s M nil u 


E SAI 


,; 








A 


Pr« 


M 


Mm 


g Gold Mi n. 


Five 


I'llt.-nl 


■ i 


Th re 


• I'ti- 


pat. 


mi.-.i 


.'in 


MIS 


Property et 


ulppei 


Willi 1 


31 


- 1 .. 1 1 ,v 1 


mil 


lu- 


..11 . 


Yimlili' mill, con 


presse 


1 nil |.l 


nil 


All 




ern 


ll ml 


reai 


V t 


. atari up w 


ii 


repali s 


Mln 




\ ■■]. 


ped 


IV 1 


III- 


■ tunnels, all 


■ ii 


••lve tin 


IIRI 


ml H 





ore 


hloc 


i.-.l 





that will n\ 


ra g-i 





in in 


-iil.l. 


Sle. 


ping 


and 


poi 


klni; quarters i "» 1 n 


I'I. 


pert; 


open 


tor 


1 n sn 


■Ctll 


II II 


ii, I sampling;. 


All . 


nglnee 


B 


■epor 


will 


confli m 


ill 1 


■ 


Sllll.'lll. II l> 




















TH.IM 19 11. 


m:\\ ii. h.i>. 










Ull 


Ins 


Ex, 


Iniiik.- 11.1k.. 


Colora 


in Sprl. 


■" 


Colo 





WJ^^^^l^ST^ Our catalogue of tech- 
«O^J^/*m\J nical books makes the 
finding of any particular one an easy task. 
We will be glad to send you a copy. 

MINING AND 80IENTIFI0 PRESS, 420 MARKET ST.. 8AN FRAN0I800 






MINING AND SCIENTIFIC PRESS 



July 4. 1914 



WHERE TO BUY 



Leading Manufacturers and Dealers in Mach ntry, 
Supplies and Instruments. If you do not find what 
you want here, write us and we will give you the 
names of competent and reliable dealers. 



t — ) INDICATES KVKRV OTHKIt WHBK OH MONTHLY V DYEHTISEMEXT 



\. . i \ it-nt- Lamps Page, 

■ ! — 

licit at on 

I ion Co. . ii 

leering Co., i. C. — 
i malgamntorn 

29 

\ luiiiiuiled I'lnl t-> 

co i 'Is ■ 1 1 ■- Wks.37 
Ti ■ 'i- Engineering Co., L C. — 

Aannj rn* Ji ml t'lit-mlMtM* 
Director] 

tge 22 
Aaaaj cm' jmhI i ftemlsla' Sup- 
plies 

on, The -■"» 

i -Knecht-Helmann Co. 36 

i >em ei Fire Clay «'•■ rt7 

& Smelter Supply Co..— 
Balances un«l Weights 

it h ft Sums. Win 41 

Bra uii < '..i pora tlon, The 

K necht-Helmann * '•• -'• 

Co 37 

i [erman, Sr ) l 

Mm. ft Smelter Suppl i :o 

s;.ii Lake Ha ■ dw are Co 1 1 

Thompson I la lance < !o 41 

. iter, Henry 41 

Hull >llll« 

Allls-Chalmers Mfg. Co 7 

i i.i rdtnge < Ion leal ill 11 Co i i 
Traylor Bng ,v Mfg Co . IS 
Bearings 

Ig< Mfg. Co 8 

I I Roller Beai ing I "•'. . . 27 

Mees* .v- c.ottfrled Co 

Back < lover 

Tr< ei Ing i '".. i.e. 

Belting 

I damond Rubber Co.. The.. . — 

Mfg. Co It 

! Mm se ft ' '•' — 

■ F — 

Meesi .v Gottfried Co 

Back > !over 
Belt Co. .2!' 

Blasting Powder 

l 'n Pont de Nemours Pow- 

Blocks, Chain 

& Town.- Mfg. I <■ 

Blowers 

Allls-Chalmers Mfg Co 7 

i Electric Co 8 

Hendrle ft Bolthoff Mfg. ft 

<'.. 2 

Worthlngton. Henry R — 

Holler Graphite 

roseph.37 
Bollem 
Abendi oth ft Root Mfg. <'... . is 

Allls-Chalmers Mfg. Co 7 

n ks, Morse ft I '<> — 

I Rl kard ft McCone 

Back Cover 
off Mm ft 

g 

Hendy Iron Wks., Joshua... 

Front I Y.\ .i 

Pow< i ft Mining Machy. Co. — 

ITnlon Iron Works Co 12 

BookM 

Mining and Scientific Press. 

SO, 35, 13 

I i _ 

Boots and Shoes 

' . Bool -v SI oe I !o - .37 

Brlrk, Kir,- 

Atkins. Kroll ft Co 26 

n Cor] oration. The 

■ i I tlmann Co. 25 

I'n e Clay Co 37 

Brlqaettlng Machinery 

1 Corporation, The.. 2."> 
Braun-Knecht-Heimann C< 

Bng. ft Mfg Co IS 
Buckets 

Allls-Chalmers Mfg, Co.... 7 
Broderlck & Bascom Rope 

Co :,i 

i >bdgi Mfg. Co 8 

Harron, Rlckard A McCone. 

Back Covei 
llendrie & Bolthoff Mfg, ,<_• 

Sup. Co 2 

I I ■ dy Iron Wks.. Joshua.. . 

Front Cover 



I'age. 
1 tope ' 'o., A. 29 

Meese ft Gottfried Co 

Back ' lover 
Robin ■■ ■ -■ Bell i to , 88 

Watt Mining Car Wheel Co. 37 
Wellman-Seaver-Morgan Co, 19 

lltiruer*, 4111 

Corporation, The 85 

- ECnecht-Helmann Co 3 i 

Denver Fire Clay Co 37 

Har Rlckard .<; McCone. 

Back * lover 

rn io ii 1 1 mi Works Co 12 

Cablewaya, simpfDMion 

Bi odei Ick ft Bascom Rope 

Co g] 

Flory Mfg, Co., s 39 

Lescnen ft Sons Rope Co., A. 39 

Palntei Tramway <'., 28 

r. s. Steel Products Co.. .42 
Cages 

Chalmei B ft Willi;. -us 13 

HeiHh-ip A- Bolthofl Mfg, .<; 

Sup. < *,0 - 

Hendy [ron wks.. Joshua., . 

front • Jover 

Traylor Bng. ft Mfg. Co.. ..46 

i In Ion i rou Works Co 13 

Wellman-Seaver-Morgan Co 18 
Carbone, Borta. nmi Diamonds 

Atkins. Kroll & Co 26 

Cam 

Allls-Chalmers Mfg. Co 7 

Atlas Car A- Mfg Co 2s 

Demarest Co., D D is 

Fairbanks, Morse A Co — 

Harron. Rlckard & McCone. 

Back < !over 
Hendrle A Bolthoff Mfg. ft 

Sup. Co 

Hendy Iron Wks.. Joshua... 

Front Cover 
m i in .'c- Smelter Suppl 3 Co 
Traylor Bng. A Mfg Co. . . . IS 
Mining Car Wheel Co. 27 
Wei 1 ma n -Sea ver- M01 ga n Co. 1 :< 
Castings 
A bend roth ft Root Mfg. « '.. 19 

Mfg, Co y 

a lien Amerli a n Man- 
ga nese Steel Co — 

Lunkenhel mer Co 30 

Phosphor Bronze smelting 

Co 28 

Taylor-Wharton iron A Steel 

Co 

, t tiba Construction Co SB 

Chain 

Dodge Mfg. Co 9 

Edgai Allen American Man- 

gunese Steel Co — 

■.inks. Mors.' & Co — 

Harron, Rlckard A McCone. 

Back 
Meese A < iottfried Co 

1 lack < love? 
Robins Conveying Belt Co.. 2$ 
Taylor-Wharton iron & Steel 

Co .38 

Chemicals 

Atkins. Kroll & Co 26 

Braun Corporation, The 25 

Braun-Knecht-Heimann Co. 26 

Denver Fire Clay Co 37 

Dodge Mfg. Co 9 

Mine A Smelter Supply Co.. — 
Roessler ft Hasslacher < 'liem- 

Ica I Co 10 

Chemists 

-■- 22, 
Chilean Kills 
Allls-Chalmers Mfg. Co.. 7 

1 !ha Imers & Williams 13 

Colorado Iron Works Co. . . .51 
Lane Mill ft Machinery Co .31 
Power ft Mining Machv. Co. — 

Traylor Eng. & Mfg. Co 45 

Trent Bnglneering Co.. L. C. — 
Slaaalfleru 

frills-Chalmers Mfg. Co 7 

Chalmers & Williams 13 

Colorado Iron Works Co . . 51 

l >elstei Machine Co 3 

Dorr Cyanide Machy Co.... 44 
Power ft Mining Machv. Co. — 

Traylor Bng. & Mfg. Co 45 

Trent Engineering Co., I* C. — 



Page. 
Clutches, i-'rfk'iioii 

Mfg. Co 9 

Fairbanks, .Mors.- A Co — 

Harron, Rlckard & McCone. 

Back Cover 

ft Gottfried Co 

Back ' '-'\ er 
Wellman-Seaver-Morgan Co. 4 9 

Coal Cutters 

Allls-Chalmers Mfg. Co 7 

Ingersoll-Kand Co ."> 

McKlern an -Terry Drill Co.. 25 
Power ^ Mining Machy. Co. — 

Sullivan Machinery Co — 

C011I ilatullliiu' Mnrhlorrr 
Bartletl ft Snow Co., C. ' ' . . 12 

Dodge Mfg. Co 9 

Fairbanks, Mors.- & Co — 

Compressor*. Air 

Allls-Chalmers Mfg. Co 7 

Chalmers ft Williams 13 

Chicago Pneumatic Tool Co. 38 
Clayton Air Compressor 

works — 

Demarest Co., i_». i» 4fi 

Fairbanks. Morse & Co — 

General Electric Co 8 

Harron, Rlckard A McCone. 

Back Cover 
Hendrle & Bolthoff Mfg. & 

Sup. Co 2 

Hendy Iron Wks., Joshua... 

Front Cover 

Ingersoll-Rand Co 5 

Laldlaw-1 ui mi -Cordon Co.. . — 
McKlernan-Terry Drill Co.. 25 

Nordberg Mfg. Co 30 

Sullivan Machinery Co — 

Trent Bnglneering Co.. L. C. — 

Tit ion Iron Works Co 12 

Worthlngton, Henry R — 

Concentrator Belts 

Diamond Rubber Co., The... — 

1 1 Irlch 1 'o., B. F — 

Concentrator* 

Allls-Chalmers Mfg. Co 7 

1 Ihalniers ft Williams 18 

Colorado Iron Works Co.. ..53 
Delster Concentrator Co.... — 

r Machine Co 3 

Demarest Co., D. D 46 

Hendrle & Bolthoff Mfg. A 

Sup. Co 2 

Hendy Iron Wks., Joshua... 

Front < lover 
Mine ft Smelter Supply Co. . — 
Power & Mining Machy. Co. — 

Traylor Eng. & Mfg. Co . . . . 4 7, 

Trent Engineering Co., U C. — 

Union iron Works Co 12 

Concrete >llxers 

Fairbanks, .Mors.- & Co — 

Harron, Rlckard &,- McCone. 

Back 1 lover 
Power A Mining Machy. Co. — 
Condensers 

Alberger Pump Co 28 

Allls-Chalmers Mfg. Co 7 

Blake & Km.vvl.s Steam 

Pump Works — 

Cameron Steam Pump Wks. 39 

1 ': ■ ott Steam Bump < 'o.. 

Fred M :;! 

Worthlngton, Henry R — 

Contract, Drilling 

Linscott 1 'rilling Co 2S 

Longyear Co., E. J 4 5 

Conveyor*. Belt 

Allls-Chalmers Mfg. Co 7 

Blake A Btnowles steam 

Bump Works — 

Hodge Mfg CO 9 

Meese A Gottfried Co 

Back Cover 
Robins Convoying Belt Co. .31 
Conveyors, Screw 

Dodge Mfg Co 9 

Meese i- Gottfried Co 

Back " 'nver 
CnnverterN 

Allls-Chalmers Mfg. Co 7 

Urn. hie ft Bolthoff Mfg. & 

Sup. CO 2 

Bower A Mining Machv. Co. — 

Traylor Eng. & Mfg. Co 15 

Union Iron Works Co 12 

Couplings, Hose 

Mulconroy Co., Inc 2!> 



Page. 
Cranes 
Wellman-Seaver-Morgan Co. 49 

Crnelhles 

Braun ( Corporation, Tin- 38 

Braun-Knecht-Heimann Co. 25 

1 >enver Fire < !lay Co 37 

I >ixon Crucible Co., Joseph . 3 - 

Mine A Smelter Supply Co. . — 

Crushers 

Allls-Chalmers Mfg. Co 7 

Bacon. Earle C 88 

Braun Corporation. The 25 

Braun-Knecht-Heimann Co. -'■"> 

Chalmers A Williams 13 

Colorado Iron Works Co. ...51 

Denver Fire Clay Co 37 

Denver Quart-/, Mill & Crush- 
er ' *o 35 

Fairbanks, Morse & Co — 

Harron, Rlckard & McCone. 

Back Cover 
Hendrle & Bolthoff Mfg. & 

Sup. CO 2 

1 1 1 in! \ Iron Wks.. Joshua. . . 

Front ' Jover 

Power ft Mining Machv. Co — 
Traylor Bng, ft Mfg. CO.... 45 

Trent Engineering Co., I* C. — 

Union Iron Works Co 12 

Cupels 

Braun Corporation, Tin- 25 

Braun-Knecht-Heimann Co. 35 

Denver Fire Clay Co 37 

Mine & Smelter Supply Co. . — 
Cyanide Plants ami Machinery 
Abend roth & Root Mfg. Co.. 48 
Allls-Chalmers Mfg. Co 7 

Blatsdell Co — 

Butters Patent Vacuum Fil- 
ter ' !o — ■ 

Chalmers & Williams 13 

Colorado Iron "Works Co.... 51 

I >. -mar. -st Co., D. D 46 

Dorr Cyanide Machy Co. ...44 
Mammon.] Iron Works 37 

Hendrle ft Bolthoff Mfg. & 

Sup. CO 2 

Hendy iron Wks., Joshua. . . 

Front Cover 

Kelly Kilter Press Co 32 

Meese A (iottfried Co 

Back Cover 
Mine ft Smelter Supply Co.. — 
Pacific Tank A Pipe Co.. ..60 

Perrin A Co., Wm. B 28 

Power A Mining Machv. Co. — 

Redw ) Manufacturers 1 !o 28 

Traylor Eng. & Mfg. Co.... 46 

Trent Engineering Co., L. C. — 

Dewaterera 

Blaisdell Co — 

1 Colorado Iron Works c ',.. , . . r,i 

I >orr Cya nlde Machv Co. . . . ti 
Trent Engineering Co., L, C. — 
Distributers 

Blaisdell Co — 

Colorado Iron Works Co.. ..61 
Trent Engineering Co.. \ t , C. — 
liraitini; Material 

AIns worth & Sons. Wm 41 

Buff A Buff Mfg. Co 41 

Lletz Co.. A 41 

Dredges 

Bucyrus Company 31 

Marlon Steam Shovel Co... 46 
New York Engineering Co. .39 
T'n ion Construction Co 28 

Union iron Works Co 13 

ruba ■ Construction Co 38 

DredKlug Mtiehinerr 
Abendroth ft Root Mfg. Co. 48 
American Locomotive Co... 48 

Bucyrus Company 31 

Edgar Allen American Man- 
ganese Steel Co — 

Hendrle & Bolthoff Mfg. & 

Sup. Co 2 

Marion Steam Shovel Co... 46 
New York Engineering Co.. 39 
Robins Conveying Belt Co.. 29 

Seattle Machine Works 81 

Taylor- Wharton Iron & Steel 

Co 28 

Union Construction Co 28 

Union Iron Works Co 12 

Wpllman-Seaver-Morgan Co. 49 

Yuba Construction Co 28 

lirlll Makers and Sharpeners 
Ingersoll-Rand Co 5 

H oat Inued on paiee :fsi 




MI\IV. AM) S< II Mil It I'KI SS 






REQUIRES LESS OUNCES THAN 
OTHER BURNERS REQUIRE POUNDS 



« L8S in i im. < in « inn: ri iin m i: 

Patented Low Pressure Fuel Oil Burner, which 

ei less ounces of air preaauri to atomise >>il thor- 

ly, than other burnarn require pounds of itlr pressure. 

Inner linings are of a vary refractory lire olay tllo, and 

Illicitly and eaully replaced when necessary. 
Outer lining Is protected fully, and seldom needs re- 
newing'. 

Uniquely effective pressure fan furnishes air at a con- 
stant pressure of about 6 o«. and uses only '. to M H.I'. 

Practically >iil.rl.-«: 

THE DENVER FIRE CLAY COMPANY 
nuraiL colo. 




They drove the Tieton Tunnel with 

W0011 Snrk irtlla 

Here li an Instance in which the U. S. 
Reclamation Service proved out the effi- 
ciency and economy of Wood Rock Drills. 
In these drills, cylinders, chest and alr- 
head, the most Important parts, are now 
mode of Vanadium Tungsten Iron. Learn 
what MANY users say 

Write for our new Cntnloic today. 

Waab Irtll Works 

30 Dale Ave., Paterson, N. J. 

Agents: Hammond Mfg. Co., Portland, Ore. 
Pairbanks, Hone & Co., Spokane and [Seattle. 
Joshua II*-ndy Iron Works, Ban Francisco,! al. 




SILVER PLATED COPPER 

AMALGAM PLATES 
FOR SAVINS BOLD 

Most extensive and successful 
manufacturers. Old plates re- 
plated — made equal to new. 



Sai Francisco Plating Works 

IMMl Mlulea St.. Su FraicbK,. 

I. C. DtflNlSTON, rr,» 

<.et our prices. Catalog sent. 

Telephone Market 2915. 



WHEN YOU BUY 
STEEL TANKS 

"THINK" 



IIAMCINDTAMv 



Cyanide and Storage Tanks 

Zinc Boxes — Thickener Tanks 

Complete Oil Refineries 

HAMMOND IRON WORKS 

WARREN. PA., U. S. A. 



New York < iRice: 
■2728 Whitehall Bdg., 17 Battery Place. 




An* >lntlc For Operation 

By Any Power. 

Ilnrlxontnl or Vertical 

Type.. 

Stationary or Portable. 

Write for Catalogue "H" 

THEDEMINGCO. 

SALBH, OHIO 

Htnioo Sc Hubbell. Chic.JO Hendrit «c BollhoJ Mfs. & Supplr Co.. Denver 
Norman B. Miller Co.. Sao Francisco EngliihTool fit Supp'y Co.. kansoi City, Mo. 
Ralph B. Carter Co.. I 52 Chamber. St.. New York 




DIXON'S 

THE PIONEER 

BOILER GRAPHITE 



The action of Dixon's Flake 
Boiler Graphite is to soften and 
break up the scale already in » 
boiler, uml then t«» coat tubes 
and sheets with a Him of trnuih- 
[tc to which Bcalo cannot adhere, in doinu: this, no form ol graphite i-- 
so effective as the Hake form -and there is no flake graphite superior to 
Dixon's Tlconderoga Flake, study the Question In "Graphite PorThe 
Boiler." So. 141, free. 

Made in Jersey City. N. J„ by the 

JOSEPH DIXON CRUCIBLE COMPANY 

Pacific Coast Branch, 155 Second St., San Francisco 



38 



MIN'ING AND SCIENTIFIC PRESS 

WHERE TO BUY 



July 4, 1:<H 



i 'age, 
Drilling. Contract 
Llnscot Co ..,.28 

■ a r Co., B. J id 

Drlll«* *lr mill Steam 

pni li ma tic Tool I !o 38 

ind Rock Drill Co 8 

i lemarest ' !o., I • ! • 46 

Harron, Rlckard A McCone. 

Back ' lover 
Hards* •••- Wonder I irlll i 
Hendrii »fl Mfg A 

Sup. Co I 

ingersoll- Rand Co 5 

McKlernan-Ten ) I trill I 
Mine A Smelter Supply l '■■ 
Sullivan Mai ... . — 

Wood Drill Work* SI 

Drill** Core 

5 

ea r < '■■ . E. J IB 

McKler nan -Terry Drill 

ard Diamond Drill Co 88 

an Machinery Co — 

Or 1 1 In, Electric 

Harron, Rlckard .<.- McCone. 

Back Cover 
mgeraoll-Rand Co R 

Drills, I'rnwpeetlnK 

Harron, Rlckard A: McCone. 

Back * lover 

toll-Rand ' !o, "i 

McKlernan-Terry Drill Co. .25 

Llnscott Drilling Co J* 

Longyear Co., B. ■' 15 

New York Ei 

Star Drilling Macl ■ 

Standard Dii 11 Co. 28 

Sullivan Mai bin Co — 

I l\ IMIIIlit,- 

Du Ponl de Nemours Pow- 
der Co 32 

l>VI11llllflM 

Allla-Chalmers Mfg. Co 7 

■ nks, Moi ii A Co — 

* Genera l Electric < '•• B 

Hi ndrie A Bollhofl Mfg & 

Sup. i '-} - 

Western El Co 

Weatlnghouse Electric A 

Mfg. Co — 

K.iiKlncM. Dew iiimI <>ii<«ollnr 

Allls-Chalmers Mfg, Co 7 

... ii ks, Morse A Co — 

Hendrh & Bolthofl Mfg A 

Sup i '.. 2 

Hendy Iron Wka 

Fronl ' '"v.i 
Power A Mil Co.— 

Knurlne*. Oil 

Sulzer Bros. — i 'lesel 

Eng Ine Co. 

■ nks, Morai A Co — 

Snow Steam ruin]. Works..— 

Kngine*. Strum 

Allls-Chalmera Mfg. i !o 7 

t \L- Knowlcs Steam 
Pump Works — 

■ ; nks. Morse ft Co — 

Harron, Rlckard A McCone. 

Back Cover 

i iron Wks., Joshua. . . 

Front ' !over 

Nordberg Mfg. Co 30 

Traylor Eng. & Mfg. Co . IS 

. i ron Works l '" 12 

We 11 man- Sea ver- Morgan Co. 19 
Bxcavattag Machinery 

■ II Co — 

Fan*, \ . 1 1 1 i 1 J 1 1 inu 

Allls-Chalmera Mfg. Co 7 

■ ;; nks. Morse ft Co — 

General Electric <*" 8 

Harri m, Rickard A McCone . 

Back Cover 
Hendrie ft Bolthoff Mfg. ft 

Snp, Co 2 

Sullivan Machinery Co — 

Filter I*r«*KM«*M 

Kelly Filtei ... .32 

Perrfn A Co., Wm. R 2s 

Traylor Eng. ft Mfg. Co. ...45 
Trent Engineering Co., L C.- 
PHtera 

lell Co., The — 

Buttera Patent Vacuum Fll- 

ter Co — 

ners ft Williams 13 

Colorado Iron Worke Co.. ..61 
Traylor Eng. A Mfg. Co , ..45 
Trent Englm L. C.— 

Fire Brick 

Atkina. [troll ft Co 36 

porntion, T>i- _'■ 

Bra un- K tiechl - 1 (elma tin Co . 2" 

Di nv.r Fire Cls i Co 37 

Fittings^ Malleable nml 

Cast Iron 
National Tube Co 10, n 



Page. 
Fiances 

American Spiral Pipe Wks.. 20 

i« r Co 10 

1 Tube Co 10, II 

Foundry Baujpment 

[ngersoll- Rand Co 5 

Sullivan Machinery < !o — 

: n -Sea ver Morgan i 

Frogs nml Switches 

ks. Morse ^- Co — 

Johns- Manvllle Co., n W. .83 
V. s. Steel Products Co . . 12 
Watt Mining Car Whei I i i 

l-'iirnneeM. Assay 

Braun Corporation, The 35 

Braun-Knecht-Helmann • !o 36 

Denver Fire Clay Co 37 

Mine <<.- Smelter Supply Co.. — 
Furnaces, ItonNtlng mid 
Smelting 

Allls-Chalmers Mfg. Co 7 

i Colorado iron Works Co . . .5 1 
Hendrie & Rolihoff Mfg. & 

sup. Co a 

Power A Mining Machj .Co 

Traylor Eng. ft Mfg. Co 45 

Wedge Mechanical Furnace 

Co. 6 

Gas Prodneera 

Power & Mining Machy. Co. — 

Wellman-Seaver-Morga n Co. 19 

Gaskets 

American Spiral Pipe Wks.. 30 

Diamond Rubber Co., Tl i 

Johns -Manvllle Co., H. W. .83 

Smooth-On Mfg Co 31 

Ge a rs 

Mfg. Co 9 

\ Hen Amerli an Ma n - 

bsg Steel Co — 

! Electric « '<< 8 

Meese ft Gottfried Co 

Back Covi r 

Pacific Gear ft Tool Co 29 

Generators 

A Ills-Cha Imera Mfg, Co 7 

nks. Morse & Co — 

i ieneral Electric < 'o 8 

Hendrie A Bolthoff Mfg. & 

Sup. Co 2 

Western Electric Co — 

Westlnghouse Electric & 

Mfg. Co — 

Giants* Hydraulic 
See I lydra ulic Mining 

Ma. 111! 

<; rn i> ii it e Products 

l ilxon Crucible Co., Jose] 

Heaters* Peed Water 

Alberger Pump Co 28 

Allls-Chalmers Mfg. Co 7 

Blake A Knowlea Steam 

Pump Works — 

Dodge Mfg, Co !t 

Fairbanks, Mors.' A Co — 

Hendrie A Bolthofl Mfg, A 

Sup. Co 2 

Union Iron Works Co 12 

Hoists. Air 

Hendrie ft Bolthoff Mfg ft 

Sup. Co - 

Mine & Smelter Supply Co.. -4- 
HolNtN. Electric 

Allis-1 [fg. Co 7 

Demarest Co.. n. i> in 

inks, Morse ft Co — 

Flory Mfg. Co.. S 39 

General Electric Co 8 

Harron, Rlckard & McCone. 

Back * lover 
Hendrie ft Bolthofl Mfg. ft 

Sup. Co 2 

Hi ndj Iron Wks., Joshua. . . 

Front i lover 

Lldgerwond Mfg. Co 17 

Nordberg Mfg, Co rto 

Power & Min inu Ma< \\y 

Sullivan Machinery Co — 

Union rron Works Co 12 

Wellman-Seaver-Morgan Co. 49 
w ea t i ngh o 1 1 se K l ec trie ft 
Mfg. Co — 

HoImIm. "Irsirn 

Allls-Chalmers Mfg, Co 7 

Demarest Co.. n. P 16 

Fairbanks, Morse & Co — 

Flory Mfg. Co., s :•:' 

Harron, Rlckard K- McCone. 

Bark i 'over 
Hendrie ft Bolthofl Mfg. A 

Sup. Co 2 

Hendy iron Wka., Joshua... 

Front Cover 

Lldgerw 1 Mfg. Co 47 

Nordberg Mfg. Co 30 

Power & Mining M.vhv. Co — 



Page. 

Sullivan Ma Co — 

Union li.. u Works Co 12 

Wellman-Si -u\ er -Morgan Co. 19 
Hose 

I damond Rubl — 

Fairbanks. Morse A Co. . . . — 

< ; Irlch uk».. B, P — 

nd « !o 5 

John s-Manvi lie Co., H. W. .33 
Ilydrnulle Mlulnis Mueblncr) 
Abendrol b A Root Mfg. Co 18 
American spiral Pipe Wks.. 30 

Hendy Iron Wks.. Joshua... 

Fron l 
Pelton Water Wheel Co. . . .83 

Union Iron Works Co 12 

Injectors 

Lunkenhelmer Co 30 

p.. well Co., Wm 81 

lr»n Cements 

Smooth-) 'ii Mfg. Co ' : I 

Jltw I'lntri* 

Edgar Allen American Man- 
ganese steel Co — 

']' 1 1 tor-Wharton imn & Steel 

CO 2>s 

Jlars 

Allls-Chalmere Mfg. Co 7 

Colorado Iron Works Co. 51 

l.ntmrntory Supplies 

Bee Assayers' and Chemists' 

Supplies. 
i.miiiiM, Art* nml [neandeaeent 

General Electric Co s 

Western Electric Co — 

Westlnghouse Electric A 

Mfg. CO — 

i.umpN, Acetylene 

J us trite Mfg. Co — 

Lead Joint Pipe 

National Tube Co 10, ll 

I motives* Electric 

Atlas Car <£ Mfg. Co 2* 

General Electric Co B 

West Inghouse Electric & 

Mfg. Co — 

i.im Mttive*. Steam 

Ami i lea n Locomoth ■■ Co. . .48 

Lima LOCOIOOtlve ' Jorp 27 

Lubricants 

\ ii. any Lubricating Co.... 

i 'i.nk's Sons. Adam 38 

i lixon Crucible Co., Joseph 37 
Lubricators 

Albany Lubricating Co 33 

i book's Sons, Ada m :::; 

i lodge Mfg. Co 9 

Lunkenhelmer < '•> 30 

Powell Co., Wm 31 

>1 an lM-.il f 

Atkins, Kroii ^- Co 38 

Metal, lleiirlng 
Phosphor Bronze Smel 

Co .28 

Hetal Buyers and Dealers 
American Metal Co.. Ltd. . .26 

Atkins, Krull A; Co 26 

Beer, Sondheimer & Co 26 

Consolidated Min. A Sn 

ing Co. of Canada, Ltd. .26 
international Smelting A Re- 
fining Co. 26 

Mountain Copper Co ■'•'• 

Selby Smelting ,v- Lead Co. .26 
U. S. Smelting, Refining 4 ^- 

Minlng Co 26 

Vogelsteln & Co- i> 36 

Wlldbei - Bi oa 26 

Hills, Ban nml Pebble 

Allls-Chalmere Mfg. Co 7 

Colorado Iron Works Co.. , .61 
g ( Conical Mill i 'o. . . i * 
Traylor Eng, A Mfg. Co ...45 
Trent Engineering Co., 1-. C — 
Mills, Chilean 
AUis-Chalmers Mfg. Co 7 

Colorado Iron Works Co.. - . •"• 1 

Lan.-- Mill ft Machinery Co.. 81 
Power ft Mining Machy, Co. — 
Traylor Eng. ft Mfg. Co.... 45 
Trent Engineering Co., t* C. — 

Union Iron Works Co 12 

Motors 

Allls-Chalmera Mfg. Co 7 

Falrba nks, Morse & Co. . . . — 

General Electric Co 8 

Hendrie A Bolthofl Mfg. ft 

Sup. Co 2 

Hendy Iron Wks.. -loshua. . . 

Front Cover 
Mine & Smelter Supply Co.. — 
Western Electric Co — 



w es t In g 1 1 o u se Electric -v- 
Mfg. Co — 

XnllM. l*huN|itior llronxe 

or Bronze Smelt Ing 

Co a 

oil nml Grease Cvna 
Albany Lubricating i o 

Cook's Sons. A.Iain 

Lunkenlo t r ' !o 

Powell Co., Wm 

Oil well Bnppllca 

l troderlck i: Bascom I 

<'., r,i 

i diamond Rubber Co — 

Ha rum, Rlckard ft McCone. 
Back i 

Hendy Iron Wks ' 

Front Cover 

1 1). 1 1 

-'■ ■ i i rilling Ma. 'lum- i ■ 
Union Iron Works Co 12 

r. s steel Products Co 
ore Bayers 

See Metal Buyers and Deal- 
ers: 
Also see page 20. 
Packing; 
Diamond Rubber Co. . . . . . . — 

Johns-Mam lib Co., II. W. .33 
l*n per 

Blake, Mofflt A Town.-. .28 

I'nieiii Attorneys 

Dewey, Strong ft Co. 38 

Pebbles 

Atklns-Kroll .v- Co 2S 

IVrlomt.-il ^letnlM 

Allls-Chal -s Mfg Co. . .. 7 

Ludlow-Saylor Wire «*".... »7 

riiOKphnr liri.ii/..' 

Phosphor Bronze Smelting 

Co 

Pipe Covering 

Johns-Manvtlle Co., H. W. . 33 
ripe. Riveted 

Abendrotli .\.- Rool Mfg. Co. is 
Amerli an Spiral Pipe w 

Pipe, \\ l 

Pactrlc Tank ft Plpi I 
Redwood Man ufacl urcra 
Pipe, Steel 

National Tube Co I 

Pipe Threading; Machines 

Mem ii Mfg. Co ::• 

Powder, itiiiMtine 
i mi Pont de Nemours Pow- 
der Co 

Producer, Gas 
Power ft Mining Ma 

t'er-Morgan < '•■ . i:t 
Pntleya, Shnftlnar nml Httne«-i-M 

Dodge Mfg. Co 9 

Fairbanks. Morse ft Co — 

Harron. Rlckard ft Md ' 

Back i '■ ■■■ 
Hendy Iron Wks.. Joshua... 

Front i 'over 

M.es. ft Gottfried Co 

i lack i lover 
Robins ' !onvej i ng h:»-li • '■• 29 
Wei Ima n-Seavi i -Morgan Co, 19 
Pulverisers 

Allls-Chalmera Mfg. Co 7 

Braun ' 'orpora tfon, Tin 
Braun-Knecht-Heimann > n .. 2S 

chain i. is ft Williams L3 

i Colorado h-on Works * '•■. 

1 >< over Fire ■ !la y C« 8f 

Denver Quartz Mill A Ci - - 

er Co 35 

Hardinge Conical Mill Co i ( 
1 1. ndy i ron W ks., Josh 

Front < 'over 
Johnson Engineering Wks. . 2 7 
Mine & Smelter Supply ' 
Power & Min! 

Traylor Eng. A Mfg: Co. . . i" 
Trent Engineering Co., L. C -*- 
Wellman-Seaver-Morga 
Pumps 

a Ibei ger Pump &- Con C 
Allls-Chalmera Mfg. Co.. ... 7 
Cameron Steam Pump Wks.. 

AS 

Deane Steam Pump Co — 

I kemarest Co., D. D u 

Demlng Co., The SI 

Fairbanks, Mors.- A Co. . . . — 

i i ■ nier A Son : ■■ 

General Electric Co v 

Flarron, Rickard & MO 

Back i ' ivef 

i (.ml In lied on pasre 40). 



.IiiU 4 I'D I 



MINING WD m 11 mini I'Kl SS 






THE "EMPIRE"DRILL 

DRILL ROD AND HANDLE 

The top drill 
rod is marked 
on three sides 
with one-inch 
graduations, 
stamped in the 

metal, thus 

showing at a 

g I a u c e t h e 
exact length of 
core in the 

rasing. This 
is the only ac- 
curate means 
of determining 
this vital point 
in drilling and 
should be con- 
trasted with 
the slip-shod 
means used in 
othermethods. 
The fourth 
side of the rod 
is cut in a 
series of teeth. 
The drill rod 
handle is of 
forged steel, 
with fuu i- arms covered with hard fibre, giving 
a good grip and protecting the driller's hands 
from contact with the metal in very cold or 
very hot weather. This handle has a set of 
teeth corresponding with those on the drill rod, 
which are forced and held in engagement with 
the drill rod teeth by a lever and cam. This 
gives an instant and positive locking of the 
handle at any point on the rod, and an instant 
and easy release for raising, lowering or adjust- 
ment at any height. 



The New 

"Empire" 

Catalog 

Gives Other 

Interesting 

Details. 



NEW YORK ENGINEERING GO. 





2 RECTOR ST. 



NEW YORK 



Western Agent: 
V. A. Stout. 601 Balb.-ia Bdg . San Franciico 

"EMPIRE" GOLD DREDGES 



THE SLOGAN OF THE OAMMBOa 

"CtfAB [ill ■.•/,'.■ THE GRANDEST THING. 




In Long, Steady, Unbroken 
Pumping 

There is where pump efficiency 
tells and there is where 

CAMERON 

Multi-Stage Turbine 
Centrifugals 

prove their superiority. In mine pump- 
ing, these long pulls are the rule — and 
mines will find Cameron Multi-Stage 
Turbine Centrifugals best adapted to 
their work. 

These pumps are extremely simple, 
compact, easily transported, and are 
driven by motor or other motive power. 
Note the accessibility. Casings are split 
horizontally, so that every working part 
may be reached without disturbing pipe 
connections or pump alignment. Built 
of the finest material. Highest efficiency. 

Let its tell t/fttt mitre about litem 
— write note for Bulletin Ko. ISt. 



A. S. CAMERON STEAM PUMP WORKS 

II BROADWAY, offices the woriaovcr NEW YORK 



40 



MINING AND SCIENTIFIC PRESS 



July 4. 1914 



Engineers' Instruments and Assayers' Supplies 




The Variable Power 
Eyepiece 

A Real Economy 
15 to 25 Diam. en Transit 
18 to 36 Diam. on a Level 

Advantage* : 

Working day length- 
ened by low power 
in dull light. 

Number of set- 
ups lessened by 
high power for 
long sights in 
bright light. 




Obtainable only 
on instruments 
manufactured by 



gausch & |pmb Optical (5. 



705 ST. PAUL STREET ROCHESTER. N.Y. 

»0»« WISHINCKM CKIUCO 

■>t. 613 151tl St. »W. IS I. Michigan Biro. 



sm FMNCISCO 
154 Sutler SI. 



The Roessler & Hasslacher 
Chemical Company 

100 William Street, New York 

Works: Perth Amber. H. J. 

Cyanide 

98/99 Per Cent. 

Cyanide of Sodium 

128/130 Per Cent. 

AND OTHER CHEMICALS FOR 
MINING PURPOSES 





Gold Medal Award at SI. Loois 

imo sassy wo* 

FOB OVER 60 YEARS 

Troemner's 
Improved No. 3 
Assay Balance 

1% inch Beam. 

Sensibility Vioo Mg. 

Full, Clear sweep across beam, no obstructions. Fall away beam and pan UTefltS. 

The most popular and efficient Assay Balance. All agate bearings and edges. 

List Price. $95.00. Price List on Application. 

HENRY TROEMNER. Philadelphia, Pa., U. S. A. 



WHERE TO BUY 



Page. 
Hendrle & Bolthoff Mfg. & 

Sup. Co 2 

If* ■nilv Iron Wks., Joshua... 

Front Cover 
Jackson Iron Works. Byron. 29 
Jeanesvtlle Iron Works. . . .34 

Krogh Pump Co — 

Meese & Gottfried Co 

Back Cover 
Mine & Smelter Supply Co. . — 
Prescott Steam Pump Co., 

Fred M 34 

Pulsometer Steam Pump Co. 43 
Trent Engineering Co., L. C. — 

Union Iron Works Co 12 

Yuba Construction Co 28 

Quick* liver 

Atkins. Kroll & Co 26 

Braun-Knecht-He Iniann Co. 25 
Mine & Smelter Supply Co.. — 
Hnlltvny Supplier and Equip- 
ment 

American Locomotive Co. . .48 

Atlas Car & Mfg. Co 28 

Fairbanks, Morse & Co — 

Uma Locomotive Corp 27 

u. S. Steel Products Co 42 

Watt Mining Car Wheel Co. 27 

Replncem 

Trent Engineering Co.. L. C. — 

He* cue AppnrutDN 

Blnier, H. N 49 

Hint-, and Die* 
See Jaw Plates. 
RoIIm. CruMliliiK 

Allis-Chalmers Mfg. Co 7 

Bactm. Earle C 28 

Chalmers & Williams 13 

Colorado Iron Works Co ...51 
Hendrle & Bolthoff Mfg. & 
Sup. Co 2 



Page. 
Hcmly Iron Wks.. Joshua... 

Front Cover 
Lane Mill & Machinery Co.. 31 
Power & Mining Machy. Co. — 
Taylor-Wharton Iron & Steel 

Co 28 

Traylor Eng. & Mfg. Co 45 

Trent Engineering Co.. L. C. — 

It itofl ag 

Johns-Manville Co., H. W..38 

Rope, Manila and Jute 

Broderlck & Bascom Rope 

Co 51 

Dodge Mfg. Co 9 

Leschen & Sons Rope Co.. A. 29 

Meese & Gottfried Co 

Back Cover 
Rope, Wire 

American Steel & Wire Co. 40 
Broderlck & Bascom Rope 

Co 51 

Dodge Mfg. Co 9 

Leschen & Sons Rope Co.. A. 29 
Phosphor Bronze Smelting 

Co 28 

Robins Conveying Belt Co.. 29 
Roebling's Sons Co.. John A. 34 
U. S. Steel Products Co 4 2 

Sam pi em 

Braun Corporation. The 25 

Bra un-Kn echt - Helms nn Co . 2 5 
Colorado Iron Works Co.... 51 

Denver Fire Clay Co 37 

Mine & Smelter Supply Co.. — 
Traylor Eng. & Mfg. Co 45 

Sow Mill Machlnery 
Hendy Iron Wks., Joshua... 

Front Cover 



Page. 
Schools and College* 
Heald's School of Mines.... 22 
Van der Nalllen School, A. .28 
Screen* 

Allis-Chalmers Mfg. Co 7 

Chalmers & Williams 13 

Colorado Iron Works Co. ...51 
Edgar Allen American Man- 
ganese Steel Co — 

Ludlow-Saylor Wire Co.... 47 

& Gottfried Co 

Back Cover 
Power & Mining Machv. Co. — 
Traylor Eng. & Mfg. Co. ...46 
Shafting 
See Pulleys. Shafting and 

Hangers. 
Shells and Ring* 
See Jaw Plates. 
Shoen and Die*. 

Union Iron Works Co 12 

ShovelN. Electric and Steam 
American Locomotive Co... 48 

Bucyrus Co., The 31 

Marion Steam Shovel Co. . .46 
Sllex 

Atkins. Kroll & Co 26 

Smelters and Itrftner* 

Beer, Sondheimer & Co 26 

Consolidated Smelting & Ref. 

Co, Of Canada. Ltd 26 

International Smelting Co.. 26 
Selby Smelting & Lead Co.. 26 
TJ. S. Smelting, Refining & 

Mining Co 26 

Vo gel stein & Co.. L 26 

Mitt-iflnu Machinery 
Allis-Chalmers Mfg. Co 7 



Pag-. 
Colorado Iron Works Co.... 51 
Hendrie & Bolthoff Mfg. & 

Supply Co I 

Power & Mining Machy. Co. — 
Traylor Eng. & Mfg. Co . . . .46 

Union Iron Works Co 12 

Wedge Mechanical Furnace 

Co G 

Springs* 

American Steel & Wire Co.. 4: 

Gary Spring Works tl 

t*. s. Steel Products Co.... 42 
Stump Mill* 

Allis-Chalmers Mfg. Co 7 

Chalmers & Williams 13 

Colorado Iron Works Co 

i lemarest Co.. D. D 4* 

Fairbanks. Morse & Co — 

Hendrle & Bolthoff Mfg. & 

Supplv Co 2 

Hendy Iron Wks., Joshua... 

Front Cover 

Nordberg Mfg. Co 80 

Power & Mining Machv. Co. — 
Traylor Eng. & Mfg. Co.... 48 

Union Iron Works Co 12 

w.-llman-Seaver-Morgan Co. 19 
Stump Stem Golden 

Demarest Co., D. D 16 

Steel, Drill 

Barron, Rickard & McCone. 

Back ' 
Steel. M a ni; n ii fur 
Edgar Allen American Man- 
ganese Steel Co — 

Taylor-Wharton Iron & Steel 

CO 2^ 

Suction Dredge* 

Tubs Construction Co : • 



Jllll I l'>ll 



MIMV. II Mil |( I'KI SS 



II 



Thompson's 
Balances 

will uttiafy the most 
exacting demands. 
Their constancy is in 
keeping with the ex- 
treme care required 
for accurate work. 
YOU CAN BUY THEM DIRECT FROM THE FACTORY 

To avoid inaccurate weight* alwmy. utc our 
Multiple Ridrr Attachment. 

THOMPSON BALANCE CO. DENVER, COLO. 





BUFF 



ENGINEERING INSTRUMENTS 

BUFF & BUFF COMPANY 

Jamaica Plain Station. • - BOSTON. MASS. 

A. f . FULLfR, 8IATTLC, AOINT FOR NORTHWEST 

The "Bad ' i- the remit ai BO yean >■( instrument Mndj bj 

ourMr.'leo. L. Buff— »mr praWPt manager. Swdtof wWogoi 31 




Lictz 



/WE FOREMOST WITH THE PROFESSION 

TUT A.LIETZ CO.SftN FI?ANC ISCO, CAL. 

ESTABLISHED 188: 





^» HERMAN KOHLBUSCH, Sr. 

^PV ESTABLISHED 1859 
TT\Bl 170 BROADWAY, NEW YORK 
lllXTB "1 HANl'FACTUBKB OF 

TObhK Fine Balances and Weights 

JtF* ~-~~=9^ ''" r every purpose where accuracy is required. 
Bi>>m^F SEND FOR ILLUSTRATED CATALOGUE 




CAN'T WIRP 

I'M 

trouble with » ba 

N uaw ■ wu 

■ 
\» Oilld A|>|-ir< le I 

hi I I r U 

BALANCE 

with ■ ■■•fx-lal ti 
un « iii.-ii 

DO ura-liiMI.-: 
■ i -a i «■ ii , »ti rl 
» nt p H. 

VrHi If rMM » l—rtl 

THE SALT LAKE 
HARDWARE CO.. 

SALT LAKE CITY, UTAI 



/(/F/C//V 

Backed by a record of 2& years of dependable sn plct 
DATA ' "<; 09 14 h u i i B I 

7» £ /UFKJN #UL£ fa St ^^ 



MEASURING 
TAPES AND 
RULES 




SEND FOR CATALOG 

A-9 OF BALANCES 
BX-9 OF ENGINEERING INSTRUMENTS 



WM.AIHSWORTH | 

• arsons • 



THE PRECISION FACTORY 



DENVERXOLO. 
• U.S.A. • 



CARY SPRING WORKS 

240-242 W. 29th St.. NEW YORK CITY 

HIGH GRADE SPRINGS 

OF ALL KINDS 
FOR EVEAY PURPOSE 

Write for Booklet "M." 




WHERE TO BUY 



Page. 
Tanks, Cyanide 

Ahendroth & Root Mfg. Co.4S 

Hammond Iron Works 37 

National Tube Co 10, 11 

Pacific Tank & Pipe Co 50 

Power & Mining Machy. Co. — 
Redwood Manufacturers Co. 28 
Traylor Eng. & Mfg. Co.... 45 
Trent Engineering Co.. L. C. — 
Tapes, Measuring 

Lufkin Rule Co 41 

Telephones, Mine 

Western Electric Co — 

Thickeners, Sllnu- 

Colorado Iron Works Co. ...51 

Dorr Cyanide Machy Co.... 44 

Traylor Eng. & Mfg. Co 45 

Trent Engineering Co., L. C. — 
TriiinMiijs, Aerial 
Broderick & Bascom Rope 

Co 51 

Leschen & Sons Rope Co., A. 29 

Painter Tramway Co 2S 

Riblet Tramway Co 28 

Roeblfng's Sons Co., John A. 34 
IT. S. Steel Products Co 42 

Tniii.slls 

Ainsworth & Sons, William.il 
Bausch & Lomb Optical Co. 40 

Buff & Buff Mfg. Co 41 

Lietz Co., A 41 

Transmission Machinery 
Dodge Mfg. Co 9 



Page. 

Fairbanks, Morse & Co — 

General Electric Co s 

HarroDi Rlckard & McCone. 

Back Cover 
Hendy Iron Works. Joshua. 

Front Cover 

Meese & Gottfried Co 

Robins' Conveying Belt Co.. 29 
Taylor-Wharton Iron & Steel 

Co 28 

Tube Mills 

Allis-Chalmers Mfg. Co 7 

Chalmers & Williams 13 

Colorado Iron Works Co. ...51 
llardinge Conical Mill Co... 14 
Power & Mining Machy. Co. — 
Traylor Eng. & Mfg. Co.... 45 

Union Iron Works Co 12 

Tubes 

National Tube Co 10, 11 

Turbines, Hydraulic 

Allis-Chalmers Mfg. Co 7 

Hendy Iron Works. Joshua. 

Front Cover 

Pelton Water Wheel Co.... 33 
Wrllman-Seaver-Morgan Co. 49 
Turbine*, Steam 

Alberger Pump Co 2 8 

Allis-Chalmers Mfg. Co.... 7 

General Electric Co S 

Unions 

Lunkenhelmer Co 30 



Page. 

National Tube Co 10, 11 

Valve* 

Lunkenhelmer Co 30 

National Tube Co 10, 11 

Pelton Water Wheel Co 33 

Powell Co., Wm 31 

Water Wheels 

Dodge Mfg. Co 9 

Pelton Water Wheel Co 33 

Union Iron Works Co 12 

Wellman-Seaver-Morgan Co. 49 
Waterproof Coating 
Johns-Manville Co., H. W..33 

Smooth-On Mfg. Co 34 

Water Softeners 

Dodge Mfg. Co 9 

Weighing Machines 

Merrick Scale Mfg. Co 32 

Welding Processed 
Goldschmidt Thermit Co.... — 
Well Drilling Machinery and 

Supplies 
Brod prick & Bascom Rope 

Co 51 

Barron, Rickard & McCone. 

Back Cover 
Star Drilling Machine Co... 32 

Union Iron Works Co 12 

Wheels, Car 

Watt Mining Car Wheel Co. 27 

Wire Cloth 

Ludlow-Saylor Wire Co 47 



Page. 
Wire Cables 

American Steel & Wire Co. .42 
Broderick & Bascom Rope 

Co 51 

Leschen & Sons Rope Co., A. 29 

Painter Tramway Co 28 

Roebling's Sons Co., John A. 34 
TJ. S. Steel Products Co.. ..42 

Wire, Insulated 

American Steel & Wire Co. 42 

General Electric Co 8 

Goodrich Co., B. F — 

U. S. Steel Products Co 42 

Western Electric Co — 

Xlnc Boxes 

Braun Corporation, The 25 

Rrau n-Knecht-Heimann Co. 25 
Colorado Iron Works Co. ...51 

Denver Fire Clay Co 37 

Hammond Iron Works 37 

Mine & Smelter Supply Co.. — 

Pacific Tank & Pipe Co 50 

Redwood Manufacturers Co. 28 

Travlor Eng. & Mfg. Co 45 

Union Iron Works Co 12 

Zinc Dust and Shavings 

Atkins, Kroll & Co 26 

Braun Corporation, The. ...25 
Braun-Knecht-Heimann Co. 25 

Denver Fire Clay Co 37 

Roessler & Hasslacher Chem- 
ical Co 10 



12 



MINING AND SCIENTIFIC PRESS 



July i. 1!IU 



Su ceeding Trenton Iron Co. 



Tmencan 
fteel & Wire 
bmpan/s 




Gardner Crusher and Pulverizer 

For Laboratory Work 



NO matter what the contour of the 
ground, we will construct a tramway 
that will transfer material in a bee-line 
at minimum expense; and no grades are too 
steep to surmount; no rivers or valleys too wide 
to cross; and no grading, bridges or viaducts of 
any kind are required. There is practically no 
limit to the length of these tramways. We 
have one line carrying ore twenty-one miles. 

Write I'n imr oomplett descriptive book showing 
every form of application. And we will be glad 
to work upon propositions submitted to us, re- 
turning full and complete specifications and cost* 
of construction. 

American Steel & 
Wire Company 

Pacific Coast Representatives 

S. Steel Products Co., San Francisco, Los Angeles, Portland, Seattle 

Chicago, New York, Worcester, Cleveland, Pittsburgh, Denver. 
Export representatives, U. S. Steel Products Co., New York 




This Crusher is adapted for grinding any 
material, wet or dry, to any desired degree of fine- 
ness, ranging from 2 S A" to 20-mesh and under. 

For laboratory work it is especially desirable. 
The hopper can be closed so that nothing will be 
lost and it is built exactly like the larger machine, 
with necessary changes for laboratory use. Small 
power required. Easily cleaned and always re- 
liable. Send for catalogue giving full information. 

C. O. BARTLETT & SNOW CO. 

Cleveland, Ohio 



Shasta Region 

UPPER 
Klamath and Crater lakes 

Hotels in Picturesque Surroundings. 

Cottages with Hotel Service. 
Camps with Log Cabins and Tents. 

Trout Fishing 

In Upper Sacramento, Pitt, McCloud, 
Klamath, Williamson and Sprague Rivers. 

RESORTS: 

Shasta Springs, Lamoine. Sims, Sweet Briar, 
Castella, Castle Rock, Castle Crag, Dunsmuir, 
Upper Soda Springs, Shasta Retreat, Sisson, 
McCloud, Klamath Falls, Pelican Bay, Eagle 
Ridge, Etc. 

Reduced Round Trip Excursion Fares. 

Southern Pacific 



• l"U 



MININC AND 91 II Mil |l PR| SS 



I : 



You Cannot Have Pump Trouble and 
a PULSOMETER at the Same Time— 

The Two Don't Hitch 







— ! 




1 * 






**■ Vi?4iiwi9 



Hul->oinctrr i..i.,ll..,l for pumplDJ Hashing water nt tin- Boddi Min. ■-. Bod' I 



Wli Pulsometer never 

requires lubrication or Foundation. 
No engine belt, pistons, iacking, or 
packing. 

n ; muddy and grltt) 

* iter without the illghteal quaver to II 

.in 

draining 
mini ivatlng tallli 

washing anywhere and everywhere thai 
pumping la to be i lot 

>li. work without a b 
Vein may lower It, raise it. Bwlng ii about 
without Interrupting lis steady, even 
Bervtce. 

Nor does it require any special holding 
apparatus— any plank or tripod or rope 
or chain will bold it. 

Surely you want the Catalog of Fads— Write for it. 

Pulsometer Steam Pump Co. 

28 Battery Place, New York City 



ii 



Taking a Kodak With You" 




has become a habit with those who love 
the free outdoor life such as is found in 
Alaska. The result is that the PRESS 
tells the story of the Far North with pic- 
tures as well as pen. Of the PRESS staff 
Mr. T. A. Rickard has travelled south- 
eastern Alaska, the Yukon Vallev and on 
to Nome in 1908. Mr. W. A. Scott fol- 
lowed the same trail in 1911. Mr. H. F. 
Bain studied southeastern and southwest- 
ern Alaska and the Copper River coun- 
try in 1911. Mr. E. E. Hurja, special 
correspondent, who writes of Ketchikan 
in this issue, is visiting both coast and in- 
terior in 1914. In addition the PRESS 



has special correspondents in Dawson and the leading Alaska mining centers. 



-the editors know 



News of Alaska printed in the Mining and Scientific Press is authoritative - 
the country and the people and like both. Why not have the best? 

Mining and Scientific Press, 420 Market St., San Francisco 



$3.00 Per Year. 



$4.00 in Canada. 



$5.00 Abroad 



44 



MINING AND SCIENTIFIC PRESS 



July 4. 1!'14 



Regrinding in Closed Circuit with Dorr Classifiers 
Requires No Pumps or Elevators 

i 



| I ty* 



Tube Mill ■ IB'* 4-6" 






SIDE ELEVATION ELEVATION OF FEED END 

The above arrangement is now recognized as the standard method of operating a 
closed circuit where an all slime pulp is required. The sand discharged from the Classi- 
fier will contain approximately 25/? moisture, so it can be washed to the scoop of the 
tube mill by a jet of solution and so diluted to any density desired. 



We alto 
Manufacture 



THE DORR THICKENER and the DORR AGITATOR 



All three of the above machines can be built acid proof for copper leaching and 
other processes. Write now for catalogue and full Engineering data. 

The Dorr Cyanide Machinery Company 



cabie «M«sB: 735 Fir , t National Bank BuUding, Denver, Colo., U.S. A. Bil , UH """„, , _ . 

Dorr, Denver Dorrclass. New York ° ' ' Bedford McNeill and Western Union 

EASTERN OFFICE: 30 CHURCH STREET, NEW YORK CITY 

GrotheA Carter, Mexico City. Gem ml Agents foi Mexico. N. Gutbridge, Ltd., Sydney, Genera] Agent for ' 

The D*irr Cyanide tfachlnen 9tn t, Londoi, England. 



GOING EAST? 



See the Grand Canyon of the 
Feather River and the Royal Gorge 

LOW ROUND-TRIP FARES FROM CALIFORNIA POINTS TO 
EASTERN DESTINATIONS VIA THE 

WESTERNPACIFiC 
DENVER &PIO G RANDE: 

SAMPLE RATES ROUND TRIP 

New York $108.50 Montreal $108.50 

Minneapolis $ 75.70 Quebec $116.50 

Denver $ 55.00 St. Louis $ 70.00 

Chicago $ 72.50 New Orleans $ 70.00 

Corresponding: Low Rates to other Eastern destinations 

SALE DATES 

July 2. 3. 7. 8. 9. 10. 11. 14, 15. 16, 17. 20. 21, 25, 27, 28, 29, 30, 31. 
An -list 3. 4. 11, 12. 17. 18, 20, 21. 25, 26, 27. 28, 29. 
September 4, 5, 9, 10. 11. 
Detroit only, August 25, 26, 27. 

FINAL RETURN LIMIT OCTOBER 31st. LIBERAL STOP-OVER PRIVILEGES 

2 Through Trains Daily to Denver, Pueblo, Omaha, St. Louis, Kansas City 
and Chicago in connection with Missouri Pacific-Burlington-Rock Island 

For full Information, Bates and Descriptive Literature upply to 

TICKET OFFICES : 

665 Market Street, Palace Hotel, Phone Sutter 1651 Market Street Ferry Depot, Phone Kearny 4980 

1168 Broadway, Oakland, Phone Oakland 132 



.Ink 4, I'M I 



MI\IV. \\I) m II \||| |. l-KI SS 

















Searching 
for Ore 










is one thing; finding it is another. We find it. 

We find it because the search is conducted in a thoroughly scientific man- 
ner, eliminating every element of hap-ha/ard exploration. First our 
geologists determine what part of the land is mineral bearing, and next, 
our drill men make the borings there. 

The work in the field is carried on by a corps of expert geologists and by drill men 
trained to the highest degree of skill and efficiency. The work in the laboratory is per- 
formed by assayers and chemists of recognized attainments, and is checked by consulting 
geologists and mineralogists. The result is to give you, by definite methods, a definite 
and exhaustive report upon the amount and grades of the minerals found. 

E. J. Longyear Company, Minneapolis, Minn. 





TRAYLOR IMPROVED-TYPE JAW CRUSHERS 

Are So Designed and Constructed That the Cost of Operation is Reduced to a Minimum 

WATER COOLED BEARINGS, which permits of 
the continuous operation of the machine for months 
without any attention. 

ABSOLUTE ADJUSTING DEVICE, which regu- 
lates the stroke and size of material without any 
trouble. 

MANGANESE STEEL WEARING PLATES and 
HAMMERED STEEL SHAFTS, which tend to re- 
duce the cost of wear. 

THESE DESIRABLE FEATURES, together with 
many others, are not confined to the larger sizes, but 
are found in all our Blake Crushers, from the smallest 
»)'• 




CATALOG "G-2" ON CRUSHING MACHINERY 
IT'S YOURS, FOR THE ASKING. 



TRAYLOR ENGINEERING & MFG. CO. 

Main Office and Works, ALLENTOWN, PA. 
New York Office, 36 Church Street Western Office, Salt Lake City 



-Ill 



MINING AND SCIENTIFIC PRESS 



July 4. lit 1 4 



Pacific Stamp Stem Guides 




Specify Pacific Guides for your new Stamp Mill and have it 

up to date. 
Rather than repair the present troublesome guides in your old mill, 

replace them, a batters or two at a time, with Pacific Guides. 
For you. Pacific Guides will mean a saving in monthly expense for 

repairs and a reduction in your milling cost per ton of ore. 
For your mill men, they will mean relief from all guide troubles. 
It will pay you to invest in Pacific Guides. 
Write for our special offer on Pacific Guides to replace old 

equipment. 

D. D. Demarest Company 



503 Market Street 



San Francisco, California 



MARION 

Shovels for Stripping 

are rendering stead)' and efficient 
service in every part of the world. 
They are designed and built with 
the idea that nothing is too good 
to bear the Marion Name Plate. 
That's why 

A Difficult Job 

Demands a Marion 

and that's why a MARION stays 
everlastingly on the job. 
No matter where you are or what your proposition may be, we have a machine for your 
requirements and we will gladly give you information on any of our products. Write us. 

The Marion Steam Shovel Company, (Established 1884) 




31 2 Yd. MARION Revolving Shovel stripping iron ore. 



E. P. JAMISON & CO.: 



Station B, Marion, Ohio, U. S. A. 

San Francisco, Portland, Seattle, Tacoma, 



Spokane, Vancouver, B. C. 



Jul* 4 l"ll 



MINIM. \\l) S< II Mil K I'KI s> 






See This Booklet ? 




Write for it ! 
It was compiled for You! 

This 75-page booklet, showing ;ill there is to see about Perfkct DOUBLE CRIMPED WIRE CLOTH 

i> yours for the asking. 

Every Mine Superintendent should have it at his elbow — for it leads to substantial cost reductions. 
In this book you can see why the wire in our screens is crimped before being woven. 

The Llldlow-Saylor Wire Co., St. Louis, Mo. 



LIDGERWOOD 



STEAM 



Mine Hoists 



ELECTRIC 



Up to 1000 H. P. * w»»» »^-» m -m. •*_»■ m k_^ m i^_^ Any Size 

A GOOD MINE IS WORTH A GOOD HOIST 




One Type ol Liilgerwood Friction Drum Electric Hol8tB 



Lidgerwood 

Reputation 

Reputation is built upon 
performance. For more than 
forty years the reputation of 
the Lidgerwood Mfg. Co., for 
high-class hoists has been 
built up and maintained by 
the performance of the 
Company's products. 



LIDGERWOOD MFG. CO., 95 Liberty Street, New York, N. Y. 



SAN FRANCISCO 

MONAONOCK BLDO. 



SEATTLE 

ALASKA BLDO. 



CHICAGO 

FISHER BLDO. 



4n 



MINING AND SCIENTIFIC PRESS 



July 4, 1914 



INDUSTRIAL LOCOMOTIVES 

Reliability and constant service determine 
the value of a locomotive. The prompt and 
certain movement of material and the finished 
product is important to prevent delay. 

Our standard locomotives for industrial 
service are built to insure reliability and con- 
stant service. Only tested materials are used 
in their construction. Interchangeability of 
like parts is guaranteed, and long delays waiting for duplicate parts avoided. 

AMERICAN LOCOMOTIVE COMPANY 

30 CHURCH STREET, NEW YORK 

[cCormlch Building. Chicago. Dominion Express Building. Montreal, Canada. 

Carl G. Borehert, Pioneer Bldg., St. Paul. Minn. A. Baldwin & Co., New Orleans. La. 

N. B. Livermore & Co., Los Angeles and San Francisco, California. 

Korthwestern Equipment Company. Seattle, Wash., and Portland. Oregon. 




They're Laying the Line Quickly 

Lowering Root Spiral Riveted Pipe In 50 Foot Sections 




Abendroth & Root Manufacturing Co. 

Sales Offices, 45 Broadway, New York 
Works, Newburgh, N. Y. 



I! doesn't lak.- long to lay a line of Ro ii -I'irai Riv- 
eted Pipe. The pipe section-* are so light and - 

sally put together Into long sen -. and 

these sections are so easily laid in the 
trench that the pipe line Is completed In 
short order, ai minimum expense and 
trouble. 

Lightness combined with greai 
strength and durability are 
good features to barnem 
up to, when tho pipe 

is for genera! inin- 
Ing service. 




That 
Helical Seam 

is what makes Hoot Spiral 
Uiveted Pipe so strong. 
It forms a continuous rib 
from end to end. It give 
added strength to every 
point in the pipe. 

Write for full particulars 
and prices. 



. I"ll 



\tl\IV. \M) MINI II K I'KI SS 



SIGNIFICANT 



tu Mining in. 'ii i> id.- nun. Mm.-, mi. -Hi thai the Mine Safetj Appliance Company owned b) Meaai 
II Deike and J. T Ryan, formerly safety experts of the U S, Bureau of Hinea, will he the Eaatern Rep- 
.'.iti\.-* o( II \ Elmer, North American Agent for Siebe, Gorman & Co., Ltd . Manufacture 



U 



PROTO" MINE RESCUE APPARATUS 



Tin- character of these men ami their familiarity with everj type of reacu luipmenl presupposes 

tlmt the) hn\.' undertaken the new oonneotion with refere to their experience and investigation "t 

the comparative merita of all rach apparatus manufactured, 

Therefore their enlistment in behalf of PROTO apparatua will !"■ seen to be quite ;i^ much in behalf 
te mining industry in the territorj the) «ill serve. 

The Siebe, Gorman GAS ANALYSIS APPARATUS, manufactured ler the instruction of l>r. J, S. 

Haldi «ill be sold hereafter in the Eastern territory bj Messrs. BimerA Amend, New Fork City, 

r ntlj appointed mj Agents, 

H. N. ELMER, 1139 MONADNOCK BLDG., CHICAGO 

Sole American Agent for the Makers: Siebe, Gorman & Co., (Ltd.) 



Eastern Agents for Proto Apparatus 

MINE SAFETY APPLIANCES CO. 

541 Fourth Ave., Curry Bldg., PITTSBURG, PA. 



Eastern Agents for Gas Analysis Apparatus 

EIMER & AMEND 

205 Third Avenue NEW YORK CITY 



BE 



lTffiYfELLMAH-5EMR MORGAN CO. 



^^r R ^|ENGIMERS AND MANUEACTURERS^i 1 ^' ^ * 



IVISIOHj 




HIGH GRADE ELECTRIC MINE HOISTS 



Purchasers of our 

HOISTING MACHINERY 

receive the benefit of our engi- 
neering experience covering a 
period of thirty years in building 
equipment of this kind. 

Clutches and brakes are operated 
by air cylinders, and the brakes are 
so connected as to set immediately 
upon failure of air pressure. 




Installed at the Mine ol the Tonopah-Bclmont Mining Co. 



CLEVELAND, OHIO, U. S. A. 

NEW YORK. Hudson Terminal. DENVER, 611 Ideal Building. MEXICO, D. F., Apartado 1220. 



50 



MINING AND SCIENTIFIC PRESS 



July 4. 1914 




LESS BOTHER AND UNCERTAINTY. 
Continuous wooden stuve pipe is less bolher 
to transport, nnd requires less labor and ex- 
pense to lay it. Our wooden pipe will carry 
more water and last longer than metal pipe. 
Read the full story in "Wooden Pipe: Its 
Many Advantages." Sent free. 

GOLD STORAGE TANKS are used when 
the solution from the leaching tanks holds 
vegetable matter and fine slink in suspen- 
sion. The floating hose draws oft the clear 
solution from the top. 

further data on pages 10 and i"7 in our Mining 

Catalog No. 7. It i- mailed h 

Pacific Tank and Pipe Co. 



SAN FRAKCISCO: 
PORTLAND, ORE.: 
BOX 184 Kenton station 



::ii'/J Market so t .i 

LOS ANGELES: 
loom «« Equitable Hk. Bdc 




ALPHABETICAL INDEX TO ADVERTISERS 



i — , INDICATES BVBRV OTHKlt WEBK lilt miintim . .DVBRTISBHEW 



Pi 
Abendroth A Ropi Mi. i 
Alnaworth A Sons, William 
A Ibany Lubricating Co. . . . 
Alberger 1 'ump A ■ !on ' '■■ 
Allls-Chalmi i b Mfg. Co. .. 

a merlcan I motive Co. . 

A merii an Metal Co., Ltd. . 
A merlcan Splra i I 'Ipe Wks 
American Steel .v.- Win Co 

Atkins, ECrolJ A Co 

Atlas Car A Mfg. Cn 



- 
18 

(l 
:::: 
28 

. IN 

26 

SO 



Bar] C 28 

Bai i letl A Snow Co., CO 

: & I- b I iptlenl Co, I" 

Bi or, Sondhtimer & ' '« 20 

II Co — 

Blake, Moffil & Towne 28 

Bri ..._■'■ 

i i . . i i . ■ . .. n Co. 25 

1 :i oderiok & i (a s Ropi 

Co :.i 

rua i Company "l 

Bufl Mfg Co II 

I tuach - Sulzei Bros ■■ I i ■ 

Engine ■ !o 25 

Butters Pat* at Vacuum Rl- 
ter Co 



Cameron Steam Pump Wks., 
A. s 

Cary Spring Works 11 

Chalmers A Williams 13 

C lea go Pm n tli Toi »1 I !o.S3 
Ah Com pri 

Works — 

Ch \ eland Rocs Drill Co. .. :: 
Coast Mfg A Supplj Co. . . .30 

< Colorado I Works Co. . . 51 

Consolidated Min, A Smelt- 
ing i 'o, "f Canada, Ltd. . 2G 
Cooks Sons, Adam ".': 



pelster Concentrator Co. . .— 

i leister Machine Co " 

t leane Steam Pump Co — 

Demarest <*<•.. \ >. l> 46 



Pa g< 

i '• ning » '■>.. The 37 

Fire Clay Co.. Ell 

Q ii.i il/. Mill A.- < 'nisli- 

i -ewey, Strong A Co ,36 

i ilamond Rubber Co., The. .— 
Dfxon Crucible Co., Joseph. 81 

Mfg:. Co i» 

i mil * Cyanide Machinery Co. i i 
1 mi Pont de Nemours I 'ow- 
der Co.. E. i 

Vllen American Man- 

■ ■>■■ Steel Co — 

Elmor, H. X Lj) 



i ';i ii 'hanks, Morse & Co — 

ii. m % Mfg CO . S SI) 

r & Son .... 28 

General Electric i"" S 

« iuldsclimldl Thermll Co. . . . — 

fi Irl< I :.!■'. . 

f3t. West. Smelting & Rel 



O 



i i.i in mond 1 1 "ii Works 3 

Harding. I ' ■ i Mill Co. . i 

Hardscog W lei Drill Co. 

m Rlckard A Met ■ 

Back < '"\ . 

I [ea Id's School of Mines . . . .2 
i lendi Ic A Bolthod Mfg. A 

Supply <\> 

Hi.!', hun Works, Joshua . 

Front Covi 

i [utton .^- Co., E. I'" 3 

Hyatt Rolli i Beai Ing Co, J 



It-Rand ' '". 

Internal Ions i Smelting Co 



.ekekson h<ni Works, Byron. 29 

■ * j ii. Iron Works ....:: i 

Joltna-Manville Co., H. \v. .:;:: 

j .tli us. in Engl sring Wks. .27 

.T us trite Mfg. Go — 



Page. 
Kell) Filter Press Co. 82 

K bunch, Herman. Sr . i ' 

Krogh Pump Co — 



La Id law- 1 Uinn-Gordnn Co, 
Lam Mill .^ Machinery Co. 31 
Leschen & Sons Rope Co., A. 29 

Lldgerwod Mfg. Co it 

Lletz Co., A ii 

Lima Locomoth e < !orp -7 

i in-, otl Drilling Co 28 

1 1 « "i> . E, .T l-"> 

Ludlow-Saylor Wire Co, ■ . . 17, 

l. hi Kin Rule Co 11 

Lunki n hel mer I !o :: " 



M.i rlon Si earn sii..\ el i 
MeKlernan-Terry Drill Co 

Mecse & Gottfried < "" 

Back Co* 

Mei i. ll Mlg. Co 

Mi- nick Scale Mfg Co 

Metals Buying & Ref Co. - , 
Mine .v- Smelter Supply Co. 
M ineru is Sep A in. Syn, Ltd ■ 

Mounts i N ' 'oppei Cn 

Mulconroy Co., Inc 



'-. ■ ! Tubi Co I". M 

New York Engineering Co. .39 
Nordbei p Mfg. Co 30 



Pacific Gear A Tool Co 29 

p I ft i Tank A Pipe I 'o . 50 
Painter Tra mway Co ol Sa n 

Francisco 

■ Water Wheel Co 

Pi i i mi A Co., Win. R 2S 

Phosphor Bronze Smelting 

• '.. 28 

Pierce. L. S 29 

Powell Co., Win. 31 

i 'm\\ .i .t Mining Machj . Co, 
i 'reacol t Steam Pump Co., 

Fred M 31 

Pulsometer Steam Pump Co. 18 
Ptitman Bool A Shoe «'n. . . .27 






i i, ■ i w i Man H facl urer - 

Ulblet Tramway Co S3 

Robins < lonvej Eng Belt Co. . 29 
Roe bllng's Sons Co., John A 34 
Roesaler A Hasslacher Chi m- 
IcaJ Co 10 



Salt Lake Hardware i '■• 
San Fi q nclsco Pla i Ing Wks 
Seal tie Machine Works ... 
Selby Smelting & Lead Co 

Smooth -l in Mfg. <'«■ 

Snow strain Pump Works. 

Southern Pacific Co 

Sts nda rd i ilamond I trill t '-• 
Star I trilling Machine Co, . 
Sui llvan Mach inei y Vo. . . . 



Taylor- Wharton Iron .■* St. . -i 

' !o J^ 

"i'ii pc on Bali ■ Co 13 

Ti a s loi Engineering & M Eg. 

Co 35. 15 

Trent Engineering Co., L C 
Troemner, I lenry LO 



L"i !onsl ruct Ion Co 3jB 

Union I ron Works Co 12 

U. s. Smelting, Refining & 

Mining Co -<■ 

r. S. Steel Products Co. . . .43 



Van dei Nalllen School, a. . j:: 

Vogi I-, in A I '".. L 



Watt Mining i '.' r W lieel • 'o. 
\\'<-i1l;,- Mechs n U a I Fu rnaci 

Co 

Wellman-Seaver- Morgan ' !o. 

Western Electric Co 

Western Pacific Rallwa; 
Westfnghouse Electric &. 

Mfg. Co 

Wildbcrg Bros 

\Si l-\ A Sons, John 

Wilson .'v.- c't>.. J. C 

Wood Drill Works 

Worthingtont Henry R 



Vniv A Townsend Co. . 

> UbS ' 'oust rUCl ion i '., 



Inl\ I I'M I 



\II\IV. WD -. || M || |, |.|<| SS 



M 




COLORADO IRONWORKS COMPANY 



SMELTING ^ ( i ^ ORE MILLING 
EQUIPMENTS Ji/j MACHINERY 



• i- ' 

I!II4 



Cyanide Plants 

We have closely followed ever} development of the cyanide process since il was first 
brought into use tor gold and silver extraction and have always maintained a foremost 
position in the advance of that process to us present state of efficiency. We have 
originated much successful equipment tor the economical handling oi ores during 
treatment ami have designed and built numerous plants embodying the most approved 
methods of operation. Our facilities, both as to engineering talent and manufacturing 
equipment, are unsurpassed tor the design and erection of up-to-date plants. 

Would it not pay you to contract for the design and erection of your plant with a 
concern having an enviable reputation based on successful work performed and the 
ability to construct and turn it over to you in record time f 

We invite those now operating cyanide plants to submit any problems arising in their 
work to us. We have solved many special problems in ore treatment and our ex- 
perience cannot fail to be of value. 

COLORADO IRON WORKS CO., Denver, Colo.,U.S. A. 



Where a 
railroad is 
impossible 

Your problem may not 
be a swamp to cross 
like the one shown. 
Your hauling may not 
mean the crossing of a 
river, but in any event 
your mine can make 
more money conveying 
materials by our one- 
man tramway system. 



B. & B. TRAMWAYS 

are not expensive either, and our engineering 
department will submit suggestions for a system 
to meet your individual requirements. It means 
no cost or obligation to get this information. 




Remember, the rougher the country, the 
more economical do B. & B. Tramways inva- 
riably prove, in comparison with every kind 
of surface haulage. 

The sooner you write lor Catalog So. W, the sooner 
you'll know what a B. & B. Tramway can do lor you 



Broderick & Bascom Rope Co. 



General Offices: 805-809 North Main St. 



New York City 

San Francisco — 72 Fremont St. 



ST. LOUIS 



Seattle, Wash. 
New Orleans 



MINING AND St [ENTIFIC PRESS 



July 4. 1!M4 



ALDRICH PUMPS 



ONE FOR 
EVERY DUTY. 



Full details of 
construction 

given 
in catalogue. 




Every part is 
accessible. 



Every part is made 
of very best 

material 
obtainable. 



LKT US KNOW YOUR RKQUIRKMKN IS 

Harron, Rickard & McCone 



SAN FRANCISCO 



LOS ANGELES 




SHAFTING 

BEARINGS 

PULLEYS 

CLUTCHES 

CHAIN 
SPROCKETS 
GEARS, Etc. 



OUR STANDARDS 

in Elevating, Conveying, Screening 

and 

Mechanical Power Transmitting Machinery 

are the standards of the Coast. 



WHAT HAS MADE THEM SO? 









SAN FRANCISCO 
660 Mission St. 



LOS ANGELES 
130 N. Los Angeles St. 



PORTLAND 

67 Front St. 



SEATTLE 

558 First Ave. So. 



HOQUIAM 

Lamb Machine Co. 



VANCOUVER, B. C. 
Pacific Building 



COMPLETE STOCK AT EACH PLACE— ORDER FROM ODR NEAREST HOUSE 



11 1"U 



MI\IV. AND S< II Mil It PRI 



MOST RECENT DEISTER DEVELOPMENTS 

in Sand and Slime Tables 



It will interest YOl' to learn 
details of Our Latest Success. 




•j We will be glad 
to furnish catalog 
«nd data. 



Also investigate A 
our classifier. / 




itralur. 
Aljo Fnrnlshcd in Blntla Dm* 1 
PUmtad. 



Manufactured and 
Sold Only by 



■ ■ 

Dorble Deck Simplex Siicl Concentrator. 

AIm Furnished In Single Dock Typ* 

Patented. 



DEISTER MACHINE COMPANY 

INC. JULY 1912 
Home Office : Shoaff Bldg., Fort Wayne, Ind. London Office : Salisbury House, London Wall, E. C. 




THERE ARE NO STRINGS 

tied to our trial order. The Mine Manager who keeps machines 
at work which are only "fairly" efficient because of indifference, is 
losing money and hurting himself and his profits 

The high efficiency of 

CLEVELAND DRILLS 

enables us to propose a trial order where the only obligation which 
you need acknowledge will be the obligation to yourself to employ 
the best. 



With our catalog in hand you'll 
admit that CLEVELAND drills 
' worth trying anyway." 



are 



Cleveland "Neverleak" Couplings Are Absolut ly 
Guaranleed Agalnsl Leakage. 



The Cleveland Rock Drill Company 

6410 Hawthorne Avenue, Cleveland, Ohio 



LosAnseles, Cal. ; Smith-Booth-Ushor n.mpony 
Salt Lake City rtah: Palt Lake Hard ware Company 
Ppokam*. Wash. : Fairbanks, Morse & Co. 



Ishp. mind. Mich : I'. O. BOX 2M 

Butte, Montana: Western Mining Supply 

New York City: :to church Street 



Pacific Coast Agent: C. E. Green, Care of The Emlgh-WincheU Hardware Co., Sacramento. Cal. 



Mining and Scientific Press 



ESTABLISHED MAY 24, f860 



Vol. 109 



San Francisco, July 11. 1914 



No. 2 



CONTROLLED BY T. A. RICKARD 

PUBLISHED WEEKLY BY THE DEWEY PUBLISHING CO. 
AT 120 MARKET STREET. SAN FRANCISCO. 

Bedford McNeill (2 editions). 

BRAXCB OFFICES: 
CHICAGO — 300 Fisher Bd(r. T.I.: Harrison 1G20. 
NEW YORK— 1S08-10 Woolworth Bdg. Tel.: Barclay 6169. 
iN— The Mining Magazine, Salisbury House. E. C 

ANNl At SUBSCRIPTION: 

States an-1 I t' 

Canada It 

Other Countries In Postal Union 21 Shillings or Jo 

111- \ - - - M. 

as S M liter. 



TABLE OF CONTENTS 



AN IMPORTANT SERIES 



We have Hie pleasure of announcing a most Important 
series of articles upon present-day practice In Bine Bmelting, 
prepared by Mr. E. H. Leslie, assistant editor- of the i 

Hie lirsi of the articles is printed this 
week. The whole series will [ncl 

Zin. Smelting m Babtlesville, Oklahoma. 

NATIONAI Zini Company. BartlISVILLI 

[NSVTLLE Smbxteb ok tiik Babtlb&VTLLE Company. 

Zini Smelting at Hillsbobo, Illinois. 

Rose Lake Smfj h.r oi »» Gbanbi Company. 

Ml.NEBAX Point Smelter at Depuk, Illinois. 
These articles are based upon firsthand information col- 
lected in the course of personal visits to the plants described 
and have been prepared with the active cooperation of the 
companies mentioned. They show how experience in the gas- 
fields has led to redesigning of furnaces in the coalfields: how 
introduction of flotation lias modified furnace work: and how 
in a multitude of other particulars metallurgists have been 
improving zinc smelting till it no longer deserves the repu- 
tation for being a backward art. 

Zinc ranks fourth in value among the metals produced in 
the United States, being exceeded by iron, copper, and gold, 
and in turn exceeding lead, silver, and the minor metals. 
The spelter production for 1913. according to the U. S. Geo- 
logical Survey, amounted to 337,252 tons. There are now :;l 
line smelters operating, and two building. The plants vis- 
ited by Mr. Leslie are among the largest and most interesting 
in the Middle West. Several of them are here described 
for the first time, and at each plant there are many things 
to interest anyone connected with the zinc industry or with 
metallurgy in general. 

Readers may wish to refer to a previous paper by Mr. 
Leslie on Mining and Milling at the American Zinc Prop- 
erty. Joplin.' May 2?.. and the one on 'Industrial Hygiene as 
Practised at Palmerton. Pennsylvania,' by Dr. John W. Luther; 
chief medical officer of the New Jersey Zinc Co.. May 16. 
Monthly summaries of Joplin and Wisconsin development are 
also printed with weekly tabulations of metal prices. 



EDITORIAL 

Notes .- 41 

Workmen's Compensation Insurance In California 41 

ss and Politics 43 

ARTICLES 

Zim Smelting xt Babtlesville, Oklahoma. 

By E. H. Leslie 44 

is the first of Mr. L< - -. of articli 

:i zinc smelters, aim. where. Bartles- 

Is a natural- 
i ilanl r.-w working mainly on flotation con- 
centrate from Butte. The method of cllnkering the re- 
tort residue is peculiar and is describe.] in detail. 

In-i Prevention on mi Rand 49 

■: sprinkling tailing heaps 

with salt solution I by E I. Bosqul 

SlDKRITK AND SULPHIDES IN I.I llil'll IK OliK DEPOSITS. 

By PI !,u Argall 50 

scrlptlon of important 

orebodles long overlooked, though occurring In the 

the worlds greatest mining districts. 

Siii. nvi Mi n in., .it- Okhiuiiiks. By DOUfflat }Yaterman.. 54 

How the tonnage ami how to calculate 

the ' i ndle. 

Mixing in Spain 56 

The New Ai boba Mill, By An Occasional Contributor 57 

Details of ., new mill using heavy stamps, tube-mills, 
slfiers, and Tren 

Si u pi.k .Mink ACCOUNTS 60 

Kennedy Extension-Argonaut Decision 61 

Full teNt of an important decision regarding apex rights 
on tiie Mother Lode in California. 

Pbodui 1 1. in anii I'sks of Tungsten. By <>. ./. Bteinhart. ... 64 

DEPAIiTMllSTs 
DlS< i SSI0N : 

Tin Mining in Tasmania. By James B. Lewis C4 

Con. ini it \ 1 1 ■-: 67 

w oi Mining: Special correspondence from New York. 
Toronto. Wrangle, Wisconsin. Yerington. Guadalajara. 

Bulawayo, Johannesburg, Melbourne 68 

The Mining Summary 74 

Personal 78 

Si hooi - AM- Societies 7S 

Tin Mabket Pi mi 

Stocks and Bonds 79 

Metal Prices 79 

Mineral Statiktii -; 

Copper Producers' Association Report no 

Coal and Coke Production 

Company Repobts: International Nickel; Hampden Clon- 
cun-y: Lucky 1 nation; Oroya Links: In- 
spiration; Mt. l.yell SI 

Recent Patents 83 

Rei ini Publications Si 

New Machines »nd Devices: 

A New i"se for Belt Conveyors n4 

Autotraction Drill Rigs n4 

An inder to Volume 108 has been prepared and mill be sent 
on request. 



.luh II 19U 



IING \v ITIFK I'Kl SS 



tl 



EDITORIAL 



t:in ;•.;.■( i; 



i \i i o.\ i i;nu 



III.,- . ■ - 

M V. 

T \ I ; I • ' k \ 1 : 1 > I 
EDWAHD WALK1 



- 



A W ' 

\ UMtln 



n In 



Till". Circuit Court of Appeals at San, Pranoiao 
affirmed us decision in the caae of Minerals Sepan 
in m. Ltd., mea M. Hyde, on -Inly ii. Minerals 

Baparation now lias sixty 'lays within which to move in 
the matter of getting tin- caae before the United States 
Supreme Court. 

REVIVAL "f "III mining properties by modern meth- 
- !■- a subject which is engaging increased atten- 
tion by mill.' operators. The Secretary of State reports 
tin- revival of 43 companies in California during the 
Brat sis months of the year, with a total capitalization 
..f (22,978,500. In the current issue we record the re- 
criii revival of mining ai Aurora. Nevada, and detail 
ilu- milliner practice. Old mines, like "Id tailing dumps. 
are often worthy of investigation and many of the 
mines of the future will doubtless be mines of the past. 



JOHNSON once said that a man ought to read as in- 
clination leads him, for what be reads as a task will 
do him little good. Granting the wisdom of the re- 
mark, the inclination can yet be guided so that at the 
end of each year a man shall feel himself possessed of 
wiiKr knowledge of every subject than he had at its 
beginning. There is no easier way to acquire true cul- 
ture than by thoughtful reading of the best books on a 
wide range of topics. Engineers often rank high as 
golf players, stamp collectors, or the like ; they might 
even better rank as distinguished amateurs in political 
economy, public finance, sanitation, public hygiene, or 
some other useful subject, just as Dr. James Douglas 
is a well known authority on the early history of New 
England, and Mr. H. C. Hoover the leading authority 
on the early history of mining. 



RADIUM INVESTIGATIONS by the United States 
Bui.au of Mines at Denver, noted in an editorial 
of May Mil. have recently resulted in the application 
for patent, by Mr. Richard B. Moore, for a process for 
the extraction of refined radium salts. The process is 
reported to be in successful operation at the South Den- 
ver plant of the Bureau and will be given to the public 
for free use. It is stated that this government plant 
will be able to supply American hospitals with radium 
salts in the near future. "While out of 972 cases treated 
by the Radium Institute of London in 1913 only 56 
were apparently cured and 183 improved, physicians are 



still hopeful, and a more thorough study of the element. 

- hoped, will redound to the good of humanity, 

nOURTH OF JULY at Ely was celebrated by mine- 

and tiist aid contests, which were held under 
the auspices of the Dniveraity of Nevada. The interest 

and enthusiasm aroused by thes ateata is reported as 

aving equalled that formerly displayed in drilling i- 

ud foot races, The 'safety Brat' movement, which 
was inaugurated in Nevada sometime ago and resulted 
in the organization of a stale association for its advance- 
ment, is producing results and it is gratifying to note 

the hearty support which the mine operators are giving 
this movement. 



WORKMEN'S COMPE\SAT!<>.\ I.YSUIiANCE I.\ 
CALIFORNIA 

As we noted last week the '.Mine Owners' Casualty In- 
demnity Exchange' lias been formed to afford to mine 

operators a means of insuring themselves against terms 
of the 'California Workmen's Insurance and Safety 
Act.' We have frequently discussed this Act and the 
unequal manner in which it bears down upon mine 
operators. While there is little disposition among the 
latter, even in the face of what they justly feel to be un- 
fair burdens, to question the soundness of the general 
principle that each industry should carry its own bur- 
Ins, there is a widespread feeling that in mining, no 

way has 1 n yet provided to distribute those burdens 

equitably. 

We have had frequent conferences with the Industrial 
Accident Commission and can assure the mine operators 
that the Commission shows every disposition to afford 
them such relief as lies in its power. As we pointed out 
January 17, the funds placed at the disposal of the 
Commission by the legislature are inadequate to permit 
it to carry unlimited liability on mines, and any other 
insurance is unsatisfactory. It was at first hoped that 
it would be possible, with the friendly services of the 
( 'urn mission, to establish a separate fund for mine in- 
surance on a mutual basis; the Commission doing the 
work involved at cost. Legal advice was, however, to 
the effect that any such fund, if under control of the 
Commission, could not be maintained in the face of any 
shortage in the general fund due to a catastrophe in 
another industry. In the end, the state must make pro- 



42 



MINING AND SCIENTIFIC PRESS 



July 11. 10H 



vision permitting the Commission to offer insurance to 
the small operators, or the development of new mines 
will be greatly restricted or cease altogether. The larger 
operators can, and should, combine in a mutual com- 
pany and carry their own risk at the same time that 
tln-y establish their own inspection service, so as to per- 
mit a risk-rating system to be evolved. In the absence 
of any such general association, and the fact that the 
law itself cannot be amended until the legislature meets. 
indemnity exchanges seem to offer the only possible 
means for reducing the premiums. That the COS 
present is too high is evident from a number of circum- 
stances. 

The cost now varies with the nature of the work. We 
have collected figures covering $5,112,870, estimated pay- 
rolls for 1914. The average rate paid is a trifle over 6 

per rent. The greater number of mining companies arf 
carrying their own risk. Of 71 mines reporting, 29 are 
insured, 27 not insured, and 15 failed to state. Of 
mills and smelters the figures arc: reporting. 35; in- 
sured. 20: not insured. 1-1: not stating. 1. At the mines 
Otal pay-roll insured amounted to $782,276; and 
the non-insured or not stated. $2,111,505. The average 
pay-roll at 58 mines amounts to $49,893. At the mills 
the insured pay-roll amounts to $272,034; the non-in- 
sure, 1 or not state, 1. $747,520. The average mill pay- 
roll is $29,987. By branches of mining the figures are: 

Pay-roll. Rate. Insurance. 

Mining in general f2, 596,118 JT.s,; $204,055 

Hydraulic and dredging... 1.382,626 

Mills and smelters 1434.126 3.15 '-' 



$5.11. $6.17 $31 

It is impossible to say exactly what the real cost of 
the insurance is. While we have returns from a large 
number of companies based npon their accident rate in 
th- past, it must he admitted that thi ds have not 

always been well kept and that past conditions no . 
obtain. One notably liberal and well managed company 
operating two mines and with a total pay-roll of about 
a half million dollars, found the total cost of compen- 
sation, medical, and hospital service at one of its mines 
to be L >:; 4 per cent in 1912, 2.65 per cent in 1913, and at 
tin- other mine 1 per cent. Its officers estimate that 
under tie- new law the cost will be approximately the 
same. Another mine with a pay-roll of $158,179 found 
the cost under the Boseberry act in 1913 to be $6190, 
and estimates that under the new law the cost will be 

12 ' 4 times as much. Other figures might be quoted, but 
their variation causes hesitation in accepting them as a 
guide, though it is to be noted that none of them even 
approximate the rates asked by the insurance companies. 
Perhaps a better basis for figuring is an estimate made 
by an experienced insurance man. based upon operations 
in California and covering ! 000 in pay-rolls. Ap- 
plying to the accident record covered by this pay-roll 
the terms of the present law. the cost of compensation 
was estimated i We have had no opportunity 

to check these figures, but so far as data are available 



to us they tally. It will be noted that less than one- 
third of this pay-roll would produce more than the total 
sum in premiums, at the rates actually being charged. 

Another reason for believing that California mine 
operators are being overcharged, is the experience that • I 
man] of them are having as mine owners in Nevada. 
e the figures for the first 10 months operation of 
the Nevflda law. in our issue of June 27. It is unneces- 
sary to repeat, but with a base rate of 2.2 and a maxi- 
mum of 3 per cent, the insurance fund is meeting all 
claims and building a surplus; and in Nevada the bulk 
of the business is with the mines. It is true that the 
terms of the law are not identical with that in Cali- 
fornia, and it is possible, as urged by insurance men. 
that adequate provision is not being made for the catas- 
trophe risk. Time will tell as to this, but in California, 
so far as the workmen are concerned there is some ques- 
tion whether the cost of a catastrophe would be met by- 
some of the insurance carriers. California laws give to 
the Insurance Commissioner Limited powers, and the In- 
dustrial Accident Commission has taken the ground that 
as one branch of the government of the state it should 
not question the action of a coordinate branch in per- 
mitting an insurance company to do business within the 
state Whether the insurance be good or bad. the 
operator is protected; though possibility of an attack 
upon the constitutionality of the law lies in the power 
under these conditions to do away with the workmen's 
fundamental right to compensation for injury, without 
nsent. That again is a problem for the future. It 
is only important at the moment in connection with the 
fact that the new form of insurance, represented by the 
indemnity exchange, is now available to California 
operators. 

Under the plan of the exchange the insurance is 
ried mutually by the companies or individuals forming 
it. The rates paid in are the same as tl regu- 

lar companies and in addition notes, securities, or cash 
equal to an extra premium or a defined part of such a 
premium, are deposited with the exchange, to meet a 
contingent risk. From the sums so accumulated a per- 
centage, in the case of the concern mentioned amounting 
to l'ii. is taken to cover the cost of conducting the busi- 
Next the losses are paid, and the necessary reserve 
set aside to cover future payments on these losses. The 
remaining funds are periodically distributed in the form 
of dividends. The total liability of any person or com- 
pany in such an exchange is limited to the amount of 
two annual premiums. The final cost of the insurance 
is his due portion of the actual loss met by all members 
of the exchange, and the sum mentioned as paid for 
general expense. If he insures with a regular company 
he pays one premium and gets no refund. If he joins 
the exchange he risks two premiums and gets insurance 
at ,-ost plus 20 per cent. Since regular companies pay 
that rate, at times more, to agents who solicit the busi- 
ness, the member of an exchange gets his insurance for 
cost and makes the solicitor do the work. 



•l.il* 11. I'.'U 



MINING II Mil li I'KI S3 



i : 



Al II triii- of nil institutions then- nn- draw hacks In 
the lirst place tli'-n- lias been QO •.[..-, ili.- decision il 

fornii Sect thai such exchanges constitute in 

■urance carriers - relieve their membere of all 

farther liabilitj In ■ few states it haa bean held thai 
there is still a contingent Liability, but, as always, it La 
needful to be careful in drawing conclusions, since the 

various stati- laws differ, as well as do tin- OOUTtB [n 

California there in an especially strong presumption in 
favor of the exohangea since tln-ir organisation is spe 
rifically provided for by Lav There is the further fact, 
already noted, tliat the Industrial Accident Commission 
is not disposed to go behind the faol thai a company or 
an exchange has been authorised to do business l>y the 
insurance department of the state. As a matter of fad 
snob exchanges are now in operation in a number of 
industries. 
Tin' second danger is that membere of an exchange 

must work through a person or persons who an- con- 
stituted 'attorneys in fact, 1 Under terms of the insiir 

ance contract These men handle the funds ami eon- 
duct the business. In the ease of the 'Mine Owners' 

Casualty Indemnity Exchange,' they are young hut ex- 
perienced insurance men who are in the business, prop 
erly enough, for profit. Provision is made for an ad 
visory hoard of three members of the exchange which 
lias Large supervisory powers. Presumably they will be 

mine operators, and if til.- results of the exchange prove 

unsatisfactory they will he to blame, since the three will 

have a elear majority on the hoard. A further safe- 
guard is the right of cancellation which is reserved to 
each exchange member. 

Mine operators having shown no disposition to or- 
ganize a mutual company to care for themselves, ex 
perienced insurance men offer to form auch a com- 
pany, operate it on a limited ratio of cost, and permit 

its members to have a majority upon what will con- 
stitute for most purposes a board of directors. Tins 
warrants investigation. 



Bl SIX Ess AM) POLITICS 



In a sane ami conservative exposition of the relation 
of business to polities. Mr. F. A. Vanderlip, president 
of I lie National City Bank of New York City, in a re- 
eeni address before the New York Hankers' Association. 
presented a statement of facts and conditions bearing 
on the present so-called psychological depression which 
sums up the present condition of business in the United 
states in an admirable manner. His appeal to the bank- 
ers and business men to get in closer touch with the 
economic and political tendencies of the day and to di- 
rect their energies more to guiding and informing 
rather than obstructing is most laudable. 

There was a time when the outlook for business was 
gauged by production statistics, distribution of products 
and manufactures, by the state of the money market, 
by records of the accumulated stocks, and by the condi- 
tion of credits. With such statistical data of business 



in hand ami correlated, it was not impossible to 
a fniri\ .. radiation of what the future had in 

twelvemonth. Tin- statistics of buainea 

II measure of the buiini -s OBtlook It is almost siartlnik' 
i.i noi.- how far from tun- that is today, and how impor 
taut has luce the advent ilmus factor of legislation ami 

ilive tendencies It is no longer possible to 

ure the outlook ill tin- terms with which business men 
are made familiar through their daily routine The 
•il A'. ■ ord La crowding out of it >, p|a f im- 
portance lit, Financial Chronicle, ami tin- public is 
watching and waiting for executive ami congressional 

action rather than the comptroller's abstract to measure 

the status of industry Mr. Vanderlip Ul .\ 

ample of this feeling on tin- part of tin- public, the fad 
that the attitude of mind of the interstate Commerce 
Commission has beco more important than the statis- 
tics of railroad traffic; tin- amount of our foreign trade 

is studied to learn the effect of changed tariff law rather 

than of trade tendencies. Reports of the attitude of 
mind of the Attorney General vie in interest with the 
crop pre, li, -lions of tin- Secretary of Agriculture; inves- 
tigations by bureaus, commissions, or Congress form a 

more important feature iii gauging a market outlook 
than do the plans for development or expansion formu- 
lated bj the executiv omittees of corporations. 

The factors which appear uppermost in the minds of 
tin- business interests of -the nation are what is going 

to in- the effect of new- legislation, what new laws are to 

acted; not what is the prospect of crops Inn of 

congressional action. It, therefore, seems reasonable 
that so Long as tin- public looks with fear ami trembling 
to the action of commissions and governing bodies, rather 

than to natural Conditions, the present inertia will con- 
In - -Mr. Vanderlip slates a belief that if business 

men will gel themselves into a slate of mind where they 

view conditions broadly, with a historical ami social 

sense rather than only from their individual point of 
view, they will apprehend better the direction iii which 
the whole current of political thought is flowing and 
will feel less impatience with the legislative movement 
and vastly less pessimism concerning its results. 

As a result of Mr. Vanderlip 's plea, a publicity 

mittec has been appointed whose purpose will he to en- 
lighten and direct public sentiment rather than contend 
with it. No good can be attained by quietly sitting by 
and railing at Washington. With a iMHI.diio noD.hushel 
wheat crop and a statistical position of industry which 

si Id warrant a prediction foi prosperity ami imme- 
diate expansion, there appears to be a psychological 
phase to the present depression. While this condition 
may be intangible, it is never! lieless real: a restoration 
of confidence in what the future has in store and a 
realization that industry is not being plotted against 
by the executive and legislative heads of our govern- 
ment, while it may not be a solution of the difficulty, 
would undoubtedly strengthen the business position and 
remove some of the obstacles from the channels of prog- 
ress. 



44 



MINING AND SCIENTIFIC PRESS 



July 11, 1914 




OEKEBAL VIEW OF THE RARTLESVII.I.E SHELTEBS, SHOWING Till: NATIONAL 



aSnac Sinm©Ilitnim^ ®.t B&ri<eswiillIl© B OHalhioinnisi 



By E. H. LESLIE 



The Oklahoma gasfields murk the apparent last stand 
of the natural-gas zinc smelter, and while the days of 
such plants are by no means numbered, unless un- 
expected discoveries are made in this or other localities, 

the time is not indefinitely Ear off when the zinc smelt- 
ing interests must abandon the present natural-gas belt 
and seek sites convenient to permanent t'uel supplies 
and reasonable freight rates. At the present time the 
coal districts of Illinois are most favored, as they have 
been since the beginning of the industry in this eountry. 
but the latest zinc smelters are being erected farther 
east, in Ohio and western Pennsylvania, 

Fuel is. of course, the keystone upon which depends 
the life of the smelter. At present there is no shortage 
of gas at Bartlesville and there are three smelters in 
operation: the Bartlesville Zinc Co. and the Lanyon- 
Starr Smelting Co., both subsidiaries of the American 
Metals Co., and the National Zinc Co., which is con- 
trolled by Beer, Sondheimer & Co. and E. 0. Jacobsen. 
The future gas supply is uncertain and as a result the 
plants have not that stamp of permanency which char- 
acterizes the new producer smelters of the Illinois coal 
districts. Improvements and upkeep expenditures are 
kept low, since no one knows upon what day there will 
be no more gas and Bartlesville will follow in the foot- 
steps of Iola. In an effort to prolong the life of the 
smelters, the Smelter Gas Co., a subsidiary of the 
American Metals Co., has been organized and. bavins 
leased large tracts of land in the vicinity of Bartlesville. 
is exploring this ground vigorously for new gas deposits, 
with some success. The gas consumption of the three 
smelters when in full operation amounts to 23,000,000 
eu. ft. per day. The Bartlesville Zinc Co. uses 9,000,000 
cu. ft., the Lanyon-Starr Smelting Co. 6,500,000 cu. ft., 
and the National Zinc Co. 7.500.000 cu. ft. per day. 
While it is impossible to say how long this consumption 
can be met, there is reason to believe that the end is not 
yet in sight and a long period of activity is anticipated. 



The Bartlesville smelters are situated about one and a 
hair miles southwest of Bartlesville. The smelter sites 
lie on the north side of the right-of-way of the Missouri, 
Kansas & Texas railway lines, from which private sidings 
have been laid for the unloading of ore-cars and supplies 
ami shipment of spelter. The town of Bartlesville is 75 

miles from .Toplin. tli atre of the zinc mining industry 

of l he Middle West ami from which the smelters in the 
past have received the bulk of the concentrates treated. 
The topography of the smelter sites is generally level, 

with s e depressions which have been filled with retort 

residue and others whieh at the present time are being 
used for dumping ground and will afford dumping space 
for years to come. 

Bartlesville No. 2 Plant 

Tie- ground plan of the Bartlesville Zinc Co.'s smelter, 
whieh is shown in the accompanying drawing, shows the 
arrangement of the buildings. The compactness of the 
plant and favorable spacing of buildings and furnaces 
for short hauls, with little or no available space wasted, 
is apparent. The general view of the plant, opposite, 
shows the character of the buildings and furnishes an 
idea as to the magnitude of the works. In addition to 
the standard-gage railway turn-outs, the plant has ade- 
- quate narrow-gage industrial track for the handling of 
charges, pottery, residue, spelter, and smelter supplies. 

In the past the smelter was operated largely on Joplin 
concentrates, but at the present time the bulk of supply 
is a flotation product from Butte, with some Joplin, Colo- 
rado. Needles, and Mexican ore. The concentrates are 
received at the plant in ordinary freight cars and un- 
loaded by hand into the receiving bins in the ore-house 
at the northwest corner of the property. The ore-bouse 
is divided into compartments for the storage of various 
grades and kinds of concentrates. The bins are flat- 
bottomed with wooden partitions and are underlaid with 
steam coils which are used for reducing the moisture in 



.1 I » 1 % II l"l I 



MINING \M> II Mil I. I'KI SS 







HSC COMPANY, LANYON STARR, »\n BAKTU8VUJJ \ 



tin- concentrates ^ received. The bins are on the ground 
level, and in removing concentrate it is necessary to 
kIiii\i-I it into barrows, in which it is taken to the crush 
iiiLT and drying department 
Two circular dryers are situated in a wing < >t" the old 

roaster house containing the thi iginal furnaces, 

wliili- another dryer of the same type lias i n installed 

in the new roaster house, which contains two additional 
furnaces. The concentrate, which is usually .-i mixture 

of Colorado and Butte ores, is fed at tin ntre of the 

dryer and moved by revolving rabbles to the periphyry 

where it is discharged through chutes into the I I of 

a bucket-elevator. The bucket-elevator discharges into 



a 4-mesb trommel screen, the oversize from which is 
returned t" a pair "t' 24 in. rolls, while the nndi 
is taken by a i»-li conveyor to the superimposed 
feed bins of the Zellweger roasting furnaces. The dry- 
ing capacity of the smelter is no) sufficient tor handling 
the entire roaster feed, with the result that during the 
daj shift undried concentrate is shoveled directly npon 
the feed end of the roasting furnaces and both drying 

1 roasting is done by the Zellweger roasting furnaces 

during the day shift. The dryers and crushers are 
operated by a 50-hp. General Electric motor operating 
on a 110-volt circuit. 

For roasting sulphides, five of these furnaces are 







THE BARTLESVILI.E NO. 2 SMELTER. 



46 



MINING AND SCIENTIFIC PRES3 



July 11, 1914 



used. This type of roasting furnaces has round con- 
siderable favor through the Oklahoma gas smelting 'lis 
trict. The furnaces are of the mechanical reverberator; 
type with hearths 150 ft. long and 15 fi. wide. Tin- rab- 
bling or raking mechanism is tin- special feature of this 
lype of furnace and consists of a number of V-shaped 
steel cups which arc mounted radially on a heavy shaft 
with cog-wheel supports connected by wire cable with 
the driving machinery. The wheels rotate on tracks 
in wheel pits at the sides of the hearth and are some- 
protected by an apron which is suspended from 
irch and thus protects the wheels and driving 



end. while on the return to the feed end the charge is 
moved hut little and only a plowing effect is obtained 
by the rabbles moving over the hearth. The racks, which 
serve as track for the support of the rabbles and cause 
the mechanism to move uniformly through the furnace, 
are air-cooled hy an air-chamber below them and the rab- 
bling mechanism is air-cooled as it passes out of either 
end of the fcirnaee. where it remains for a minute and a 
half before the return trip through the furnace. The 
ends of the furnace .nv closed with hanging walls and 
sheet-iron suspended doors as shown in the halftone. 
The furnaces, as operated at the Bartlesville plant, will 




1 




I'M 


1 




18 


2 


building. 


1 t 




Lime 


IS 




Wash house 


16 


r. 




IT 


E 


nter-shop. 








19 


H 






|0 


I 'ell. 


•>] 


11. 


storage-oli 




! 




:■:: 



PLAPS ol BARTLESVILLE No. 1' SMELTER. 



Blacksmith 


24 


Mixing house. 


25 


Boner- ho 


26 




Engine- 1 oom 


2 , 


i and sampling ho 


28 


i ire-bins. 


29 


si .'..-I bins a sted ore. 


SO 


Tile and si ■-! stacks. 


::i 


Ore-bins. 




Rotar j 'ii 





Zel Iweger roasting Curi s. 

Retorl Furnace iilocks. 

Hose-house and 10,000-gai stor- 
age tank. 
1 1 eproof room for lire pump. 

Ash elevator. 

Barn. 

Earth-bank reservoir. 

Pipe-line Crom Sand creeR C1H 
miles awa 



iiisni from the intense heat of the furnace. A 

Qash-light photograph of the interior of a Zellweger fur- 
nace nt tic Neodesha plant of the Granby .Mining & 
ag Co. is shown opposite. This furnace is 
a typical Zellweger roasting furnace and the rabbling 
mechanism and the Mass of construction is seen from 

the illustration. The rabbling eups are lifted to collars 
which are mounted loosely on the shaft ami a locking 
device holds them rigid or allows them to turn on the 
shaft according as to whether the passage of the rabble 
wheel is from the feed to the discharge or from the dis- 
charge to the feed end of the furnace. 

By this means the charge is uniformly picked up by 
the cups, raised, turned, and moved forward as the 
rabbles pass through the furnace toward the discharge 



treat ::<i tons of concentrate per day re. hieing the sul- 
phur content in the roasted product to about one per 

cent. The temperature of the Eurni s is kept at about 

1000°(\ Tie- roasted concentrate is discharged from the 

end of the hearth hy the rabbles, which move the charge 
every six minutes. It falls into steel cars and is re- 
moved to sleel Storage bins. The furnaces arc equipped 
with ID gas burners on each side. The four burners 
nearest the feed end are % in.; these are followed hy 
three l -.-in . and three %-in. burners, making 20 burners 
to each furnace. The rabbling mechanism is driven by 
a 12%-hp. General Electric motor operating on a 110- 
volt circuit, each furnace Inning an individual motor. 
The motors are equipped with automatic starting, stop- 
ping, and reversing device for regulating the travel of 



11 I'M I 



MINING \m> 9 I: Mil l< rui SS 






the rabbles through the furnace, <i simple hydraulic da 
rice being used tor thia purpose Combination till 

barge the furiiiiio gaaea Into the atmoa 

When the furaaoes ar.- being fed with dried 

ins. the feed in auto 

being tripped upon each passage <>( tin- 

rabbles through the furnace and the t I falling .li 

recti) upon the hearth. 

used in the miring room is brought fi i 

the Pittsburg, K Id together with Rome Arkan- 

mi-anthracite, It is delivered from the railway 
..I bins, which are 
.iiiinil,\ situated with rela 
tion tn tin' mixing housi and cen- 
trally placed with reference to 
the furnace buildings, :*- shown 
in the plan of the plant. Bere 
the roasted sulphide, carbonate, 
and fuel are mixed in a concrete 
mixing machine, and the mixed 
charge elevated t<> bins from 
which it is drawn into the charge 
- ami moved over the indus- 
trial tracks ti> the furnai 

The original smelter plant rum. 
prised six 1. Inrks of retorl fur- 
which three additional 
blocks have been added. The Eur- 
naces are a modified Hegeler 
type 100 t't. long and adapted to 
natural-gas fuel. The furnaces 
consist of Is sections on each side 
of the block, with 16 retorts to the INI 

section in four rows, making 1 >NS 

retorts to the side, and 576 retorts to the block. The 
plant, therefore, comprises 51S4 retorts in the 9 blocks 
of furnaces. Air and gas is admitted at the front of the 
furnaces at each section, a practice which in some of the 
more modern natural-gas furnaces has been replaced by 
using a 'blow-hox' at each half-section. The Eurnaces 
are of the cellar type. The retorts used are 50 bj 8% 
inches inside dimension and are made, together with the 
condensers, at a pottery on the grounds. As has come 
to he standard practice in the United States, oo prolongs 
are employed. The average life of the retorts at this 
plant is about 30 days. Air for the furnaces is supplied 
by a blower in the engine room and conducted to the fur- 
nace blocks through a galvanized iron pip. -.line and dis- 
tribution system. Under present operating conditions 
there is charged from 14.500 to 16,000 lb. of roasted on 

to the side per day or about 150 tons of raw otrate 

for the entire plant. The extraction of the zinc is about 
85% of the charge assay. 

The furnaces are about seven years old and in a good 
state of preservation. Blue powder is added to the 
charge in the last two sections of each block and a tem- 
perature of about 1400° C. is maintained. About three 



lii-d in charging 

. in I'll.- lirxt draw in 1 p in the BM I at 

p iii . and tin- hist a I. oil! I a in It of II 

■ut i IS ■] ■ Iter to ill.- aide, the 

Iran producing aboti 
the last l". The Aral metal drawn, being diNiiii- 

ureal temperature, in the purest, ami 

'extra •elect' in 56-lb. molds The regular run of the 

furnacM in cast in 'J' 1 lb molds. The retorts are drawn 

I), ladle suspended from a crane in a movable 

carriage, which ladle is swung under the condensers and 

operated by a hand winch The Oxide <>r 'blue powder' 

I-- shniii I off and shoveled aside for n 




During drawing operations the drawman is protected 

by a shield on the draw carriage from the heat of the fur- 
nace. After tie- hist draw, (he residue is removed from 
the retorts and falling through a chute in front of the 
retorts is collected in industrial cars or pans below the 

furnace. Steam is used for cleaning the retorts, the 
n-ater being immediately converted into steam upon en 
lering the retort. The water-line and hose connections 
.ire in front of each side. Any slag adhering to the re- 
torts is removed by scrapers. In cleaning the retorts 
the man operating the hose is protected by a shield 
which is suspended from a rail on rollers and is easily 

ved along the furnace. Twenty n are employed 

per day on each block. 

Treatment of Retort Residue 

The treatment of retort residue presents some inter- 
esting features which have been developed at this 
smelter as a result of the treatment of the Butte flota- 
tion concentrate. In thai the residue contains silver in 
commercial quantities, a large amount of experimental 
work was necessary to develop the best method of re- 
covering the silver and it has resulted in the 'clinkering 



48 



MINING AND SCIENTIFIC PRESS 



July U, 1914 



process' by which a blast-furnace material is made at 
the plant and shipped to Colorado smelters. The pro- 
cess consists in reducing the carbon content, which is 
upward of •i |l '< . and the formation of clinker. 

Construction op Heaps 

residue is removed from the furnaces in steel 
industrial cars and run oul over an elevated structure 
own in the halftone m a site to the north of the 
smelter, where it is dumped and shaped into roasting 
heaps. In the building of these heaps a bed of residue 
2 ft. thick is spread oul into a square of from 20 to 30 
It. on a side, nml upon this hod, brick-work air channels 
are constructed A plan and sections arc shown in the 



of i linker bearing silver results. This clinker is then 
cooled, broken, the brick channels removed, and the 

product shipped to Colorado furnaces. 

The pottery plant at which the retorts and condensers 
for the Company's use are manufactured is equipped 
with a Mehler retort press, and pug-raill, an augur 
condenser machine, and two small Ft. Scotl pug-mills 
for pugging condenser materials. The crushing ma- 
chinery consists of one 12-in. Blake crusher, one set of 
24-in. and one set of 16-in. rolls, and screens. The re- 

torl material is ground to 5 mesh. St. Louis clay is 
used for retorts while the condensers are manufac- 
tured from a 1 to 1 mixture of clay and old retorts. 
The clay is unloailed from freight cars inio the clay- 




BRICK-WOBB nil: CLtNKERlNG-HEAPS. 



accompanying figures. One main air channel is laid 
through the centre of the bed and this channel is banked 
with dirt to prevent clinker from adhering to brick-work. 
From the main channel, branch channels are constructed 
at right angles extending to the edges of the heap. Eight 
of these branch channels are laid to allow- the air to 
escape and bo evenly distributed, thereby producing a 
uniform blowing effect throughout the heap. The ends 
of these branch channels are connected in the large 
heaps as shown in the plan. The main channel is con- 
nected by pipe with the main air-distribution pipe and 
this is connected with a blower which supplies air for 
all of the heaps. When the brick-work has been com- 
pleted it is covered with residue, the air is admitted, 
and the heap is fired. The heap is then added to until 
a height of about six feet is reached and it contains 
about 400 tons of residue. The roasting or burning 
process is kept up for approximately 40 days, when 
the pile will be reduced to less than one-half its original 
size, the carbon reduced to almost nothing and a mass 



ti bl 



3et - o.~* c o' 



bins, where it is weathered from three to six 
months. After the first pugging it is cut into 
short cylinders as it comes from the pug-mill 
and again stacked for about a week, when it is 
given the final pugging and put into the retort 
press. The retorts are inspected as they come 
from the press and sent to the drying rooms, 
which are steam heated. They are then re- 
moved from the drying rooms as the furnaces 
demand, placed upon industrial cars, and taken 
to the furnaces where they are finished in the 
annealing ovens, there being one annealing oven 
to each two blocks of furnaces. 

The power-plant, which adjoins the pottery 
building, is equipped with a 250-hp. Corliss en- 
gine with belted generators, a 150-hp. Chase 
compound, and a 120-ft. Garden City blower to 
supply air for the retort furnaces. Natural gas 
is used for fuel under the boilers. There is also 
a fire pump with pipe connections to all departments of 
the plant. The water supply is brought through a pipe- 
line from Sand creek, which is a mile and a half south- 
west. An earth-bauk reservoir 250 by 100 by 10 ft. deep 
serves as a reserve water storage at the smelter. There 
is also a 10,000-gal. steel tank for the smelter supply, 
the water being pumped to this tank from the earth 
reservoir. 

The plant equipment includes about two and a half 
miles of narrow-gage industrial track for the handling 
of smelter products and a mile of standard-gage rail- 
way sidings for the receiving of smelter materials and 
shipment of spelter. A laboratory building is fitted 
with all of the equipment necessary for making indus- 
trial aualyses and determinations in connection with 
zinc smelting. There are also machine and blacksmith 
shops, carpenter shops, lime house, wash rooms, and 
offices on the smelter site. 

Due largely to the efforts of the present manager, 
Archibald Jones, the smelter, after a somewhat dis- 



II. T'll 



MIMV. AM) N II Mil li I'K 







v ]|> w iv mliw OF ' 0W8TB1 

\ BOW 'ii nui's UMMr tllNKHUI'. 



couraging beginning, is ;ii present being successfully 
operated, and the development of the treatment of Butte 
t1i-i;ttii.ii residues has constituted one improvement in 
the smelting of zinc concentrate. 



ue 



A simple but seemingly effective process for prevent- 
ing dust-blowing from dumps has been placed in active 
operation at the Perreira Deep. The originator of the 
process is P. L. Bosqui, who describes the process as 
folio ws: It consists of spraying the surface of the 
dumps with the si inn- residue in the condition in which 
it is ordinarily pumped to the slime dam and mixed 
with about 100 lb. of salt per ton of two parts water to 

one of slime pulp. The hygroscopic properties of the 

salt prevent the crust from drying and cracking. It is 

estimated thai it might be necessary to renew this coat- 
ing three or four times a year at insignificant cost. The 
spraying plant consists of a 40-ton cone-bottom agita- 
tor to which the residue slime stream is diverted as re- 
quired. From this tank the pulp is forced hy means 
of a triplex Gould pump into a 4-in. distributing main 
provided with hose taps at suitable points. The pulp 
is sprayed on the dump by menus of a 4-in. hose and 



about 4n in pi • 

u Dimple and inexpensi 
well I... effective it is n><i earl) to obtain 
definite Bgurea as regardi mmp 

lion, etc . u Ihi proport if salt, the thick 

pulp, mid other details uill 

laril) be titled in accordance with 

experience. 

The effect of the ipnying is to give the 
dump a thin crust ti„. peculiarity of the 

crust is that it is not so brittle as might I"' 

expected. There is a degra plasticity 

about it which is renewed bj the moisture in 
the air. The hygroscopic or moisture-absorb 

Log property of the salt in the spraying mix- 
ture prevents the crust Prom drying and 
cracking, it only remains to test the capa 
bility id' tl rust to resist the disintegrating 

influence of the high winter winds Should 

they prove powerless to roh the process of its 
efficacy, a great boon will have been conferred 

upon the mine dwellers of the Kami. An esti 
male of the cost of spraying the .lump places 

it at the modest figure of a pennj per inn sip 
it., or even less. 

The hose is easily manipulated hy one or 
two natives who can spray at a rate of COD 

siderahly over an acre per hour, consequently 

the ti taken tO spray a whole dump. Once 

the equipment is erected, would be i osl 

eases under ,i day. and in no Case would it 
exceed two days. 

The idea of adding brine to the slime was suggested 

by F. -I. Trump, manager of the Perreira Deep, who 
pointed out that salt is used in some of tin- colliery 
districts in England for laying dust On roads. The 
installation at the Perreira Deep cost under £1000. 
The credit for being the first to apply the spray treat- 
ment for the prevention of dump dust is due to the 
Bast Hand Proprietary Mines, which has already cov- 
ered the Driefontein dump with a coating of vlei mud. 
which has proved very effective, but such mud is not 
everywhere available, and. in any event, the use of 
current slime which Mr. Bosqui has installed is cheaper, 
simpler, and more likely to be universally adopted. — 
('a in Imr i) Times. 



The works of the Hydro-Electric Power & Metal- 
lurgical Co. have been acquired by the Tasmanian Gov- 
ernment, financial troubles led to this end. Hood 
progress has been made with the pipe-lines and power- 
plant, and within a year there will be 85,000 lip. avail- 
able for mines and manufacturing plants. 



Mineral prodi ction of New South Wales Eor the first 
quarter of 1914 was worth £2,754,999, an increase of 
t467,162 over the same period of last year. Coal and 
silver-lead exports showed a large increase. 






MINING AND SCIENTIFIC PRESS 



July 11. 1914 



SkSerifce and Sulphides m Lsadlvffl© Or® Btejposjte 



By PHIUP AKCALL 



-: lerahle economic impor- 
table of the iron oris Even 
nianganifer - - ■ in great demand 

mu factum spiegeleis 

value iu • - tieally considered, sider- 

- !>erhaps the more important of the sedimentary 

- .•{ which have been precipitated a> 
honates and. tl • - sses, re- 
arranged or redeposited - hematite. Much of 

roti ore is now considered to have 
■■_• in. 1 The hematite ore of Breece Hill 
I^eadville. is in all probability derived 
siderite. which is plentiful at depth even now in that 
locality, and recently has been reported iu great abun- 
dance in the Hopemore mine. 

of iron has long been known as 

an important mineral of Leadville replacement deposits 

in the blue limestone horizon, particularly in association 

-imary sulphides, and in ss - 9 '.utioo 

cavities Over - s] mens from 

.>:ercourses in the La Plata mine, partly 

filled with manganese oxide, and reached the 

that >'■ - - ;i great part, if not wtaol 

from - ierite. Last May I picked up 

the dump of the adjoining S s mine 

uauganiferous iron oxide at* 

hied siderite. A casual examination of 

ine dumps a few days later - - lerite 

resulting in a nice eolleeti - 'mens. 

it mostly typical si ■ - iparatively 

- lation. The dumps yield' - - ite are 

- Sellers, T. 4 Minnie, Colorado 
No. 2 (Louis ilk group . R A M. Mikado group), 

lown-tswn mines \ the "Wolftone. the Bl 
-lamie Lee. and the Fitzhugh. I had previ- 
eolleeted specimens from the workings of the Res- 
urrecl r. Tucson. S -d. and Maid • 

mir - 

Bering two miles in one direction 
and almost five in another, from the Resurrection to 
the Penrose, is ample to show the wide distribution of 
siderite at Leadville. While 1 examined no other dumps, 
excepting those of the principal downtown mines, there 
is little reason to doubt the occurrence of siderite in 
all : - -hat have penetrated the oxidized zone. 

while in the white limestone horizon, the siderite re- 
placement deposits with their associated lead and zinc 
ores, are second ouly in importance and extent to the 
sulphide repla - n tlfe blue limestone horizon : 

judging by the last few years" development in the Tue- 

.nrk-h. "Economic Geology." 1910. p. STO. 



son mine of the ' - r Mining Co. and of the Maid 
a - 
I believe that sediment th its irbon- 

- should l>e differentiated 
from the siderr - ssure i ms and in re- 

placements therefrom, herein called Both 

varieties contain mangan- - s carbonate; par- 

ticularly vein siderite. which invariably contains a much 
higher proportion of mang - - Iimentary 

siderite. It may he permissible in discussing the dif- 
ference between sedimentary siderite and vein siderite. 
briefly to revic" - the important siderite •> 

including that pecuh ss E silver-lead-zinc veins in 

which siderite forms the principal gaugue: then to com- 
pare chemical analyses of vein siderite with those of 
sedimentary origin. 

K s Sides ins 

The great Perran Iron lode. Cornwall. England, oc- 
curs in Devonian clay slate intruded by granite por- 
phyry dikes. The vein averages about 50 ft. iu width 
and is in places filled with i — -lerite carrying 

manganese. The outcrop has been exte; - 
worked for limonite. and much siderite was mined in 

- Brora, the deeper workings. Beeans 
the decline in the price of iron and increase in silica 
in the ore. it could not be profitably sold as 'spiegel' 
ore in 1800. when I had charge of the principal mine 
on the lode. The vein bore evidence of reopening, and 
between the shoots of mace - rite a breccia of zinc- 
blende occurred. Iu the Duchy Peru mine, the angular 
- varying from a few pounds weight to several tons, 
were imbedded in decomposed clay slate, and cemented 
and seamed with siderite. The blende breccia was prof- 
itably worked for several years with a production vary- 
tons per month of - _ zinc 

content. Rich veiulets of argentiferous galena occurred 
in places, but apart fro: ystals of galena and 

sphalerite the siderite was free from ziuc. lead, and 
silver. Near a granite porphyry dike i"elvan" a large 
deposit of fine grained sphalerite occurred in a sider- 
gangue. The difficulty in separating these min- 
erals by water concentration led to my first experi- 
ments with magnetic separaf. 

The vein in the siderite shoots was full of water- 
courses and oval solution cavities. One of them ex- 
tended two levels in height and was used for a ladder- 
way. The vein was extremely wet. the flow at the Duchy 
Peru mine varying from 600 to 1000 gal. per minute, 
depending on the season. It all came from the bottom 
of the mine. The iron ore sequence is approximately 
as follows: limonite to 60 ft.-, siderite. 60 



II I'M* 



MINIS*. \\! ITIFK I'KI sv 



I 

■ 
tuting on|) 
hole 
In Brandon I ■ ill— ogland, ■ 

ear in - of middle 

lend ov< ■ 
with a maxima in ng ft in thick 

i peros 

ide Th< brown iron of the oateropa has been mined 

iil> date, while riderite has in recent 

naively mined for 'spiegel' ore, Quarti 

■ l with the riderite usually as separate lenses 

in the vei does not occur in any 

entity in the veins 

i LNO l\|i Ql liM ivy 

lii numerous lead mines in the North of England in 
iniferouB limestones, such as those of Allenheads 

i'"r example, riderite ars .-is :i gangue accompanying 

tin- galena not only iii the vein fissures bul also in 
'Hats' or replacement deposits in favorable limestone 
Im'.Is Biderite is of <-«»in 1 in .n occurrence on Hie Kuro- 
jii'iin continent both in massive veins and as the prin- 
cipal gangue, s opanying rino-lead ores. Suffice it 

otion tin' Stahlberg Uusen, where a nearly ver- 
..■in enclosed in lower Devonian olay slate has 
rorked since 1313. This mass of riderite is about 
T."> t't. thick, nearly 500 ft long, and proved to a depth 
of about 800 t't. The Luise mine, near Borhausen, in 
which Bphalerite, galena, and copper minerals occur in 
tln> vein alongside si. I. -rite, is noteworthy in that in 
it a basaltic intrusion changed the riderite into mag- 
netite. The riderite lode of the Friedrich and Esin- 
garten mines of the Bamm district, which also contain 
galena, sphalerite, chalcopyrite, and bornite, as well as 
antimony and bismuth minerals, 1 may also be cited. 
■ I. Arthur Philips calls attention to the import of 

manganiferous iron ore into England from limes! 

districts producing lead ore. where it probably repre- 
sents the superficial alteration of manganiferous spath- 
ose ore. Be mentions Almeris and Porman, near Car- 
tagenia, where there is a large export. Laurium in 
Qreece, and other localities. The ore, he states, varies 
between 2."> and 3598 of iron and of manganese. 

American Sioerite Veins 

Siderite silver-lead veins in North America are well 
represented by the Slocan series in British Columbia 
and the Wardner deposits in the Coeur d'Alene, Idaho. 
The Slocan rocks are clay slates and limestone beds of 
possibly pre-Cambrian age: this formation is intruded 
by granite, quartz porphyry, and lampropyric dikes. 

^Morgans. Morgan. Pror. South Wales Inst, of Eng., Vol. VI., 
p. 78. 

■•Philips. J. A.. 'Ore Deposits' (18S4), p. 272. 

<Beck, F.. 'The Nature of Ore Deposits' (1905), p. 196 (W. H. 
Weed). 

■••'Elements of Metallurgy' (1S87), p. 152. 



'■lated rritl tnd i|uarl .mat 

ing in depth Sidi ighout the 

.■hoi.- \ .ii. forming ng often tl 

rited on the vein trails It n as alter 

nating Mih galens and sphalerite In the rein 

Ailing, as the material In breoolated 

and I rials deposited on galem 

marking the last mineral deposition in thi 

Selected specimens of riderite from the Slocan silver 
lead Mins grave the following approximati mporition:' 

PW o Dl I', ' • • Dl I', r . .nl. 

1 

26.11 
11.681 
... CO 8.0BJ " : ' 7 ' 

•Hy differ 

The siderite is free from /inc. though deposited in 
veins with sphalerite It is also free from silver cop 

per. and lead as moleciilai stituents However. 

grains Of galena and sphalerite occur in all hut the 

purest specimens. Tetrahedrite or Freibergite is the 
chief silver-bearing mineral. It is invariably ass,, 

elated with galena and often contains 20011 oz. silver 

per ton. The slocan siderite. usually forming the hulk 

of the vein material, being (vv<- from precious metals 
and from zinc, becomes a true gangue in these silver- 
lead veins. Quarts forms the remaining gangue and 

is scarce ni the upper reaches of the veins, hut pre- 
dominates in depth. 

< in:ii! h'Ai.km: \'i ins 

The silver, had. and siderite veins of the Coeur 
d'Alene district. Idaho, are of great economic impor- 
ts] furnishing as they d arly one-third of the 

lead produced in the United States. The country rock 

is sericiiic quartzite of pre-Cambrian age. and the ores 

were formed chiefly by rep] nl along tight shear 

planes. It is believed the siderite developed first, re- 
placing both the quartz grain and the sericitic cement. 
According to F. L. Ransome, 7 siderite is the most abun- 
dant and characteristic gangue mineral of the district. 
Be writes: "Its presence as a replacement of quartz- 
ite constitutes a striking mineralogies! feature of the 
ore. In fact, the deposits in this respect are unique 
among the known orebodies of the world.'' Be gives 
no chemical analysis of this important vein mineral. 
The deposits are unusual because siderite forms so large 
a proportion of the gangue and because siderite replaces 
quartzite. Both phenomena are common at Leadvillc, 
hut perhaps on a smaller scale so far as quartzite re- 
placement is concerned. Mr. Ransome, describing the 
typical Coeur d'Alene deposit, states: "the siderite is 
massive, the ordinary gangue of the Bunker Hill & 

"Argall. Philip, 'Report of the Zinc Commission' (Ottawa, 
1906), p. 236. 

'P. L. Ransome and F. C. Calkins, 'The Geology and Ore 
Deposits of the Coeur d'Alene District, Idaho,' TJ. S. Geol. 
Surv., Prof, paper No. 62 (1908), p. 95. 



52 



MINING AND SCIENTIFIC PRESS 



Julv 11, 1914 



Sullivan mines, for example, being a pale lirowu, line 
grained aggregate of siderite not always distinguish- 
able at a casual glance from the quartzite, which it 
has in part replaced. In the vicinity of the orebodies 
all gradations can be observed between nearly pure 
massive siderite and a usually somewhat sericitic quartz- 
ite." Coarsely crystalline siderite, he states, is com- 
paratively rare, confined to the filling of open spaa 9 
or diaclases. Mr. Calkins observes (page 97) : "That 
although siderite lias a much wider distribution than 
the ores, yet it is most abundant where the rooks have 
been folded and fissured." A sample of comparatively 
clean siderite from the Hunker Hill & Sullivan mines. 





^^^ 


1 


^^^v^i 








* *• •* 

V &4 


* 








i 



Fin. 1. SIDEBITE CETSTALS OS SULPHIDES fkom ikon mask mink, 

BED 11 II I. COLORADO. 1, GALENA; 2, TYHITE; 3, CRYSTALLINE 
ZINCBLENDE AND GALENA. 

obtained through the courtesy of Stanly A. Easton, as- 
sayed 38.8% iron, 4.5% manganese, and 0.5 oz. in sil- 
ver, with only 4.8% insoluble. It contained no lead, 
but showed some fine specks of disseminated sulphide. 
In Colorado there is a great belt of intrusive por- 
phyry, of late Cretaceous age, which extends almost 
100 miles in a general southwesterly direction from the 
gold-telluride district of Boulder county through the 
gold district of Gilpin county, the gold, silver, lead, 
and zinc district of Clear Creek county, the mining dis- 
torts of Montezuma, Kokomo, Breckenridge, Alma, 
Leadville, Red Cliff, and Aspen. These intrusions, 
while not continuous, may be said to reach their great- 
est development in the mining districts noted, princi- 
pally at Leadville and probably least at Montezuma. 
This belt of porphyry intrusion closely circumscribes 
the largest and richest silvery lead, zinc, and iron sul- 
phide deposits so far developed in Colorado. Over the 
greater part of this mineral belt, varying from 10 to 
l.'i miles in width, siderite is a characteristic vein min- 



eral. This is particularly true of those veins and de- 
posits 'carrying silver, lead, and zinc sulphides and ex- 
tending from Silver Plume to Aspen. They reach their 
largest development so far known, with the maximum 
porphyry intrusion, namely at Leadville. Here the 
lower sedimentaries are seamed with fissures and ex- 
tensive replacement deposits of vein siderite, associated 
as gangue With mixed sulphide ores — galena, zineblende, 
and pyrite. 

Siderite has been described in the U. S. Geological 
Survey reports as occurring in the mining districts 
noted. SpUTT anil (Jarrey make frequent mention of 

vein siderite in their description of the Georgetown 
quadrangle," Their figures 86 and 95 are instructive, 
showing siderite as the first incrustation on the fissure 
walls. Siderite is also described as one of the last 
minerals "coating all other crystals." The Colorado 
Geological Survey chronicles the occurrence of siderite 
in the Montezuma veins." Siderite is a common min- 
eral in the replacement deposits at Red Cliff, and its 

surrence lias been noted at Aspen by Mr. Spurr. Fig. 

1 shows siderite crystals on sulphides of iron, lead, and 
zinc taken from wall of a watercourse in the blue lime- 
stone replacement deposit. Iron Mask mine. Red Cliff, 
Colorado, by courtesy of Mr. Hanington. general man- 
ager. The siderite crystals covering the galena, pyrite, 
and blende are the finest I have seen. Siderite. in 
smaller crystals, occurs all through the specimen and 
on the hack, which is mostly pyrite. 

SinKiuTK in Leadville District 

All the massive Leadville siderite I have tested is of 
the vein variety. That is to say, it is manganiferous. 
It also contains 10 to 30% silica. Part of the mangan- 
ese or iron is possibly present as silicate. A few an- 
alyses of vein siderite are quoted below for comparison 
with sedimentary siderite, taking iron, manganese, lime, 
and insoluble as a basis: 

Analyses of Vein Sidebite 

Iron. Manganese. CaO. Insoluble. 

% % % % 

No. 1 34.67 9.7S 0.28 0.08 

No. 2 36.75 8.21 0.50 

No. 3 31.00 10.80 1.40 15.00 

No. 1 28.40 13.14 6.78* 

No. 5 30.15 12.97 

No. 6 17.62 26.55 

No. 7 38.80 4.50 1.00 4.80 

No. 8 23.00 20.70 0.47 19.60 

No. 9 21.80 21.10 0.40 21.20 

No. 10 19.40 21.00 0.70 19.20 

No. 11 25.60 12.60 4.40 

No. 12 28.10 9.90 trace 2.00 

No. 13 42.50 2.40 2.80 

No. 14 29.70 5.40 .... 18.10 

No. 15 17.20 11.70 28.40 

Average 27.30 13.44 0.82 9.48 

•Including 5.52% magnesia. 

8U. S. Geol. Surv., Prof, paper No. 63 (1908), pp. 240-257-259, 
and 263. 

oFirst Report Colorado Geol. Surv., 1908, p. 139. 



Jul) 11 19M MINING \ND >■ II Mill. PRESS 

■..-r-.-l.hlrr. Kiuslaad 

I 

\ Phlll % 

U win 

..( .hill 

■ lu Tli .... I i . . 

i no vow m.i.i Hi, I,.. I . . 1 1 1 n .-urn a higher ooml I 

, .ml coutent, 10.7 againm I2.u'%, hut ala Dl 

Mill • Bum™, ,,,., "due; 

nit*. V'i Ui6 r 1 1 f u i ■_' . , i , — it) (|| 6 pieuous difference. 

Tt "-"""» "«•'»* *»'«" '"»■ Im oomparing tl ad mangane* itenl of vein 

Tucson in lacing whits Urns '""' •edimentary Bideritea, note thai the ultimate nuroa 

both metals ia the ign ■ the earth 'i .-nisi 

plaolni waits 

in wiucu ii mi. I manganes or in the proportion 

N ° "" 'dum',"' K V '' ri S * ' i iro." of approximately 60 parta of iron to 1 of raangi 

idrUle, Mm. i ..i Krm inin... Bidarltfl replacing , ' 1 " proportion of these metala in the above analyse* 

* h . l,, ' ,lr "Vr. is in tl." ratio of 36 iron to l of manganese in the 

:■-. El Pane mini Siderite collected tram , ■, ■ 

dump- sedimentary sidentee, against 2.03 parts iron to I of 

No. ii i..Hdvin... nuhosb mini-. Blderlt .i from manganese in the vein siderites. The metals, however, 

■ ion.-. Penrose mine, siderite collected from ll " v '' ""' ""'- v " different Bolubility ratio, but also ad 

dump, differently in their precipitation from solution through 

No. 18, collected on the El Paso damp, is a coarse uIk " ' slli '" '"' ll s " rt *u.-e agencies, to differentiate be 

crystalline siderite intimately mixed with pyrite and tween tbe deposition of siderite in lakes, bogs, and amid 

nut over one-third siderite. N». 14 is a very fine grain carbonaceous sediment, marine or otherwise, and the de- 

silicions siderite. position of siderite in mineral veins. 

As an illustration of sedimentary deposits or 'spathic' Somkiuty op Mangani 
iron iir.-s (siderite), including blackband ores, the fol 

lowing is presented: According to E. C. Sullivan, manganese in rooks is 

am,,.,. .„ sediment*., Smtarr. dissolved more easily than iron, by either carbonated 

water or dilute sulphuric acid." P. P. Dunnington" 

Iron. Manganese. CaO. Insoluble. . . , . ,. . • . . . „ „ 

showed that an and solution ol ferrous sulphate dis- 

70 9b % , • , , 

\o. i | o ; : ; 2.78 28.00 si.iws manganese from the carbonate as sulphate, with 

No. 2 81.82 ".74 3.26 19.35 the separation of ferric sulphate and limonite. <'al- 

No. 3 ■ 0.71 0.53 u.H cium carbonate precipitates the iron, bul the manga- 

6.61 9.80* ne8e requires access of air. The metals, therefore, may 

No. 5 83.12 0.20 5.24 8.87* ■ „ ,■ , , , , • u , , 

No „ „ s m ._ he dissolved troiu rocks simultaneously by the same 

No - 392 o.8i 16.62 reagent. bu1 for reasons stated are not usually redepos- 

No. 8 8.40 0.22 23.90 ited together. C. K. Presenius," from his studies of 

No. 9 38.20 2.28 1.90 the warm springs of Wiesbaden, showed that the man- 

No - 10 16 - 93 4 - 3B ganese in these waters remains in solution as carbonate 

2. il ^4 ,:«i £5 ,,,,,eh longer ,1,; " 1 th - iroM : "" 1 is finaU y laid down as a 

Aver: :n : _. 089 636 1492 carbonate, hence the manganese salt is more stable in 

•Carbonaceous matter. tAl s O,. solution and is carried farther. Through some of the 

X„. i_Whtte Bed mine, Brierly. Yorkshire, England. foregoing reactions, manganese is partly separated from 

No. i-Thorncliffe. White mine. Park gate, Yorkshire. iron and is perhaps redepositcd as beds of carbonate, or 

No. 3 — Gabbin and Balls mine. Bunkers Hill collierv, Stafford- , . . . . .... 

shire, England. as a local precipitate enriching m manganese certain 

No. 4 and 5 — 'Coal brasses,' Aberdane. South Wales. J. Ar- localities ill the sedimentaries. 

thur Philips. Elements of Metallurgy.' p. 149, 150. m. j nr ai i , . . . .. 

No. 6-S.inday Lake, Michigan. 'The Data of Geochemistry.' ' 1| "" KIS '""• -MacAl.slrr.' while hesitating to put 

' . S. Geol. Surv.. 190S, p. 492. forward any trustworthy example of precipitated beds 

No. 7 — Penokee district. Michigan. 'Data of Geochemistry.' ,. . . .. _ ., . , r . ., 

No. 8-Gunflint Lake, Canada. 'Data of Geochemistry.' "' manganese carbonate, eite Barmouth in Menoneth- 
No. 9 — Styrian Erzberg. Trans. Am. Inst. Min. Eng., Vol. 23. shire as having two distinct horizons containing Well 
No. 10, 11— Helen mine. Siderite, Canada. (In No. 10, CaO in- marked beds. They also state that manganese car- 
eludes 12.S r ' f magnesia carbonate, in No. ii. CaO in- bonate exists as an original deposit in the Devonian 

OntaHo S ; 7 190lT?9t a Carb0 " ate ' ) BureaU 0t Mines ' beds of the Pyrenees, in the Olig. ne of .Miil.rcn. and 

No. 12 — J. .1. Singewald, Report on the Iron Ores of Maryland,' in other localities. 

Maryland Geol. & Econ. Surv., Vol. 9, Part 3 (1911). 

Excluding No. 13, which is only one-third siderite. '"Sullivan, E. C. Trans. Am. Inst. Min. Eng., Vol. 42 (1911), 

the remaining 14 samples of vein siderite average 13.44% "' **; 

° r ° nDunnington, P. P., Am. Jour. Science, 3rd ser., Vol. 36 

manganese, against an average of less than lyo mangan- (188S| p 177 

ese in the 12 samples of sedimentary siderite. The i=Q U otcd Data of Geochemistry.' cited p. : 7:: 

computed averages are: "'The Geology of Ore Deposits' (London, 1909). p. 317. 



54 



MINING AND SCIENTIFIC PRESS 



July 11, 1914 



N'l.lN SlIiKMTE 

III,- condition of solution and Reposition is here en- 
tirely different. The circulating solutions are presuma- 
bly strongly alkaline, sulphuretted under high pressure, 
and doubtless charged with C0 2 . They are powerful 
solvents of iron and manganese minerals. Thai they 
readily dissolve silica is clearly shown in the extensive* 
replacement of quartzite in fte Coeur d'Alene and to 
a less extent in Leadville, where the quartzite adjoin- 
ing the fissures and solution cavities between the ninth 
and tenth levels in the Tin-son mine has been reported 
as reduced to a soft sandstone by removal of the sili- 
cious matrix between the quartz grains, and fine galena 
and blende crystals had been deposited in the intersti- 
tial spaces in the altered quartzite of the lower Cam- 
brian horizon." Further up in the quartzite the same 
solution that dissolved the matrix from between the 

nArgall. George O.. Eng. & Min. Jour.. Jan. 29, 1910, p. 264. 



quartz grains also partly filled the interstitial spaces 
with siderite and mixed sulphides, while the ore 
lining the solution cavities often shows siderite as the 
first mineral deposited in the sericitized quartz matrix, 
ami also i hi- last mineral formed, coating tin- penulti- 
mate crystals, usually of galena, with a growth of crys- 
talline siderite. 

-Moreover* these irregular fissures and meander- 
ing solution cavities in the Cambrian quartzite, with 
their very rich gold and silver ores, are not confined to 
Leadville. They are common in Red Cliff and elsewhere 
along the 'great mineral belt' of Colorado, and are evi- 
dently produced by the same ageney — hot alkaline solu- 
tions under pressure, charged with CO.,, sulphides, and 
ferrous iron, perhaps poor in silica content and dis- 
solving silica in the quartzites with avidity, forming 
silicious carbonate and sulphide of iron replacement de- 
posits in the Silurian limestones above, and to some 
extent in the Carboniferous limestone. 



\)WWM 



m 



By DOUGLAS WATERMAN 



The question of what grade of ore will give the maxi- 
mum profit when mined and treated is of paramount im- 
portance at every mine, and is an ever present problem ; 
beginning with the inception of the enterprise and con- 
tinuing throughout the whole life of the mine. The 
owner or shareholder usually decides whether the profits 
shall be won from a large tonnage of ore yielding a 
narrow margin of profit over a long term of years, or 
from a smaller tonnage of selected ore requiring a 
smaller capital outlay and giving quicker returns, hut 
leaving ore in the mine. It is the business of the en- 
gineer to set before his clients the possibilities of the 
property for producing the greatest net profit for any 
capital outlay, and to define the limits within which the 
mine is capable of producing a constant tonnage. 

Factors Influencing Output 

This requires a careful study of the ore deposits to 
determine the width and mode of occurrence of the va- 
rious grades of ore; the rate at which it is possible to 
carry on development; the available labor supply ail 
its producing capacity; and the future prospects; all 
of which have a direct bearing on the output. The mill 
should be of a capacity to treat the output of ore of the 
grade decided upon without crowding the mine, which 
must run at a steady pace and according to a definite 
plan, or innumerable difficulties will arise. The effect 
of increased or diminished tonnage on the costs is of 
vital importance. An analysis of their relation presents 
some interesting facts which I shall endeavor to bring 
out in this paper. 

For the purpose of illustration I have been fortunate 
not only in securing actual costs of operation over a full 
year, but also on a variation in tonnage ranging from 



6400 to 11,000 tons. These costs are grouped under 
three headings: fixed charges, mining, and treatment, 
including tailing loss. The total cost represents the 

Tube. Milling 




^ 30cr"7:.rjc oocr:~:ra r xw 



Tonnage 
Fig. 1. 

value the ore must have in order to meet all operating 
expenses. The cost of the various operations of mining 
ami treatment necessarily varies from month to month 
even with the same tonnage, owing to renewals and re- 
pairs which must be charged to current expenses. In; 
order to arrive at a representative cost for any tonnage, 
the monthly costs were plotted as shown in Fig, 1. If 
a straight line is drawn through the average cost for 
the year anil adjusted so that there is a balance between 
high and low costs on either side of the line, it should 
represent the true average for any given tonnage. This 
method was pursued with each separate item of cost, 
the results being as in the table opposite. 

These tabulated costs were then plotted in the form 
of curves shown in Fig. 2. While the figures are based 
on results obtained from treating tonnages ranging be- 
tween 6400 and 11,000, the curves may be readily ex- 
tended, as has been done in this case. The curve rep- 
resenting fixed charges may be obtained by dividing 
the total cost for the year by the total tonnage, that is 



II I'll 



MINING an. ITIFK PR 









































3 


\tr\ 




















l*tr ' 




















1'UIHI |0| 








































Sun 












0.810 








■ 11 








ii so; 








0.114 

i 186 








HIMMi 




























0.800 


0.840 




0.910 


0.980 




Timber and ralla . . 






. 0.061 




0.067 


0.069 


0.072 


0.078 




Hauling and holitlnj 


176 


0.181 


is: 


184 


0.181 


0.189 


191 






Filling . 




0.070 


0.072 




0.079 


0.082 


0.086 


0.093 




TminiiiiiiK to mill 


0.040 




0.047 


0.048 


0.050 




0.053 


o.o:,s 




■' 


1.004 


1.116 


1 162 


1.170 




1.262 




[.404 




ru m tu sr. 




















tier station . . 


18 


082 




0.091 


0.097 


0.102 


0.110 


0.120 






0.231 
0.873 


.1 .'so 


0.840 
282 


0.342 
0.884 


0.286 


0.848 


0.291 


0.296 










1.040 


1.110 


1.180 


1.150 


1.180 


1.210 


1.240 


1.800 




Filter 


0.076 
0.106 
0.040 


0.083 
0.118 
0.040 


0.084 
0.113 
0.040 


0.085 
0.114 
0.040 


0.088 
0.116 

0.040 


0.090 
U.119 
0.040 


0.092 
0.122 
0.040 


0.096 
0,040 


• 






Refining 




Bullion 


0.170 


0.170 


0.170 


0.170 


0.170 


0.170 


0.170 


it. 170 




Tailing loss 


0.500 


0.500 


0.500 


0.500 


0.500 


0.500 


0.520 


0.550 










2 B4G 


2.676 


2.782 


2.768 


2.835 


2.952 




Grand total . 


1.170 


4.480 


i 570 


4.650 


4.800 


4.940 


5.120 


5.490 





a the rated tonnage, whether il be 4000 
or 16,000 inns The curves representing mining and 
treatment charges, being nearly straight lines, may be 
extended without danger of serious error. This graphic 
representation gives ;t comprehensive idea of t In- effect 




of tonnage on the costs, and may be employed in solv- 
ing many problems in mining. In the following illus- 
trations in the use of the curves, let it be assumed for 
the sake of convenience thai neither profit nor loss is 
to result from the operations, and that the normal capac- 
ity of tin- mill is lii.iinii tuns. Then the following con- 
clusions maj be drawn. 

Examples 

For example, if there is 4000 tons of available ore 
monthly which if treated alone will just pay expenses, 
what giade of ore may be added to bring the mill up 
to full capacity without changing results? 

Treating -1000 tons alone the cost — from the diagram 
-wool, I be $6.70 per ton, or a total of .+213.000: lint if 
6000 is added, the cost is $4.40, or a total of $44,000. 
The difference between these two amounts is $17,160; 
thai is to say, allowing $6.70 for treating the first 4000 
tons, it would cost only $17,160 to treat an additional 
6000 tons, or $2.86 per ton. In other words, of litis 
6000 tons, all ore of a grade of over $2.86 would give 
a profit. 

The following are various combinations illustrating 
the example: 

4.000 tons at $6.70 $26,800 

6,000 tons at 2.86 17,160 



10,000 tons at 4.40 $44,000 



56 



MINING AND SCIENTIFIC PRESS 



July 11, 1914 



5,000 tons at $6.10 $30,600 

5,000 tons at 2.70 13,500 

10.000 tons at 4.40 $44,000 

6.000 tons at $5.05 $33,900 

1. inns at 2.53 L0.120 

10, ions at 4.40 $44,000 

These results may be applied to actual mining oper- 
• in the following manner: There are perhaps 
stopes on the lower levels that will produce 4000 tons 
of ore per month and no more, while there is a large 
reserve in the levels above that will average #3. If 
treated alone, the low-grade ore will show a loss of $1.40 
per ton on a 10,000-ton basis. The high-grade ore. if 
treated alone, will give a profit of $0.30 per ton, or 
$1200 per month. Combining the two in the propor- 
tion of 4000 and 6000 tons, results in a profit of $2000 
per month. 

This brings out the point already mentioned, that the 
mine must be run according to a definite plan, other- 
wise the st oping of the high-grade ore is bound at some 
time to get ahead of development, leaving the mine with 
nothing but the low-grade ore, which, if treated alone, 
will result in a loss. 

As another example, suppose there is 5000 tons of 
ore obtainable monthly from the mine that will just 
pay expenses if treated alone, what grade of dump-rock 
costing in cents for hauling, may be added to bring 
the mill up to full capacity and still pay expenses? 

Referring to the diagram, on a 10,000-ton basis the 
mining cost is $1.10, so that $1 per ton is saved on the 
mining charge for the 5000 tons of dump-rock treated, 
or 50 cents on the whole tonnage. 

5,000 tons of ore at $6.10 $30,500 

5,000 tons dump-rock at $1.70 8,500 

10,000 tons at $3.39 $39,000 

Various other problems may be solved in a similar 
manner; as. for instance, the treatment of tailing in 
combination with the run-of-mine ore. In such cases, 
allowance must be made not only in the item of mining, 
bul in the crushing and stamping as well, although in 
all probability there will be an added consumption of 
lime to neutralize the acid in the tailing, and perhaps 
a greater cyanide consumption ; but these are matters 
to be decided by experiment. 

It will be noted that the value the low-grade ore must 
have to pay expenses varies with the tonnage, and also 
that in this illustration the critical point is in the neigh- 
borhood of $2.70. It will result in an actual loss to 
treat any ore much below this figure. 

As it is difficull to secure from month to month the 
exact quantity and grade of ore desired, especially 
where the deposit is irregular, it would he well to set 
a limit on the permissible grade of ore somewhat higher 
than the theoretical — in this case say at $3. This could 
be adjusted to suit conditions as indicated by observa- 
tions over a period of time. 



It is a mistake to think that the bullion output of a 
mine is any indication of whether it is being wo 
.it lis best advantage. The manager may call for 4000 
tons of $7 ore. The stopes in this particular month ran 
HIO tons of $9 ore. so the miner stopes a little 
wider and adds 1000 tons of $1, still keeping the aver- 
age at $7, bul at an actual loss to the mine of from $1300 
to J>1700. This emphasizes the necessity for careful 

sampling and direction underground. 

In these examples a maximum tonnage of 10,000 tons 
has been considered. Cases may arise in which it will 
be more profitable to run the mill at less than its full 
capacity. "Wlmre the tonnage is reduced to three-quar- 
ters or one-half its full capacity it may lie advantageous, 
instead of running a part of the stamps the full 24 
hours, to run the full number for 12 or 18 hours, and 
thus effect a saving iu power and the labor of one shift. 
And if the mine is incapable of supplying the demands 
of the mill, why not build a smaller mill in the first 
place.' This is where there is the greatest need for the 
judgment of an engineer. 



Miinmg in Spam 

Mining companies in Spain totaled 22,463 at the last 
census. The mineral riches of the country furnish 
one of its chief hopes of future prosperity. The sur- 
face areas of the workings already open cover nearly 
1.000,000 hectares, or about 2.500,000 acres, an increase 
in area of over 25% during the last decade. In the 
same time the output of coal, iron, and copper have 
Increased, while that of lead has remained about sta- 
tionary. The chief provinces where mining as an in- 
dustry is in the front rank are Huelva. Oviedo, Murcia, 
Viscaya, Jaen, Ciudad Real, Cordoba, Santander, Bada- 
joz. Almeria, and Leon. These provinces account for 
90% of the output of minerals of the peninsula. Cop- 
per predominates in the Huelva district, quicksilver in 
Ciudad Heal, and anthracite ill Cordoba. Viscaya fur- 
nishes 30'; of the entire iron production, Murcia 5%, 
and Almeria 2%. Coal leads iu Oviedo, Cordoba, and 

1 i. salt in Alicante and Cadiz, lead in Ciudad Real 

and Cordoba, zinc in Santander and Murcia, lignite in 
Teruil, silver in Guadalajara, manganese in Oviedo. as- 
phalt in Alava, and antimony iu Leon. As a corollary 
to the Spanish mining industry, what is technically 
known as the 'transformation branch' has made even 
a more remarkable advance of late than the extraction 
of ore. During the past 10 years the production of 
coke has been doubled, and iron and steel likewise; 
silver smelted has increased 50%, cement 150%, mer- 
cury 30%, asphalt 1200';. pig i ron 300%, and patent 
fuel 35 per cent. — 1>< : ' i C-n fcr E ■ rt. 



MINERAL PRODUCTION of Queensland. Australia, in the 
first quarter of 1914 was valued at £441.180. which is 
£94,457 less than for the same period of 1913. Copper 
showed a reduction of £84,508, but molybdenite had an 
increase from £668 to £6628. 



•i mi 



minim; \v itifh i*ki ss 



57 




Mill i>l lilt M It HI \ hi\m ( | nu'llli MIMs COMPANY. 



Th® New Auurwa MS 



8> An OCCASIONAL CONTRIBUTOR 



The Bale of the control of the Aaron Consolidated 
Minis Co. of Aurora, Nev., to the Qoldfleld Consolidated 
Klines Co., for almosl $1,000,000, brings to lighl some 
interesting facta It demonstrates that there is a de- 
mand for good mining properties «ith no lack of pur- 
chasers; that there is a chance for old camps to revive; 
that new methods in milling are making millions of tons 
lit' low-grade ore profitable, and thai the distance from 
a railroad does no1 deter the building of an excellent 
mill and equipping the property throughout with the 
must efficient and up-to-date machinery. 

.Inst before tK tin? control of the property by 

Jesse Knight to George Wingfield and Albert Burch, 
representing the GoldfiVM Consolidated, there were in 
Salt Lake City four other interests actively bidding. It 
required *:>88,000 in cash t>> 'dose the bargain, with notes 
from the Qoldfield Consolidated endorsed by Mr. Wing- 
Held for the remainder. Among those who made verbal 
or written offers for the properly were Morton Webber; 
a Toronto engineer, representing Ellis P. Earle. presi- 
dent of the Nipissing: John W. Finch, representing the 
Amalgamated Copper interests; representatives from 
the United States Smelting, Refining & Mining Co.. and 
O. J. Salisbury, of Salt Lake City, who is believed to 
have represented certain porphyry copper interests. 

Early History 

In the sixties, Aurora was one of the big mining 

camps of tin- West, as witnessed by the ruins of the 
buildings. It was in this eamp that Mark Twain made 
his home, and so down at the heel was he at the time, it 
is said that he collected champagne bottles and scattered 
them about his back door to give his little cabin an air 
of prosperity. During the life of this camp it is re- 
ported to have had a production of $30,000,000 and no 
less than 13 mills were built at the various mines. When 
work was first started on the Aurora Consolidated in 



September, 1912, there was by actual count li people 
in the once flourishing town. Today Aurora has about 
300 inhabitants, and there are nine places where liquid 
refreshments are poured. 

The nearest railroad point to the eamp is Thorn, Nev., 
on the Southern Pacific, from which there are two 
stages running to Aurora each day, covering the 32 
miles in about two hours time. On account of the grade 
all the freighting into the camp is by way of Hudson, 
Nev., on the Nevada Copper licit J. inc. which is a dis- 
t.ii of 62 miles from Aurora. 

It was in 1912 that Charles 10. Knox and John II. 
Miller secured an option on the Cain Consolidated Min- 
ing company properly, which owned the principal niin- 
ing claims in the eamp of Aurora. They succeeded in 
interesting Jesse Knight and the Aurora Consolidated 
was organized. In September of that year work was 
started in a small way and continued until June 1913, 
when it was decided to build a 500-ton mill. W. Lester 
Mangum was made general manager. Morris P. Kirk 
and John H. Leavell of the firm of Kirk & Leavell, were 
given instructions to design the mill, and Mr. Leavell, 
with the title of manager, was placed in charge of the de- 
velopment of the property and the constructi if the 

mill. Mr. Kirk became the consulting engineer. Ground 
was broken for the mill on June 20. 1913 and on June 
15, 1914, the crushing of ore was stinted. Since then 
the amount handled has been gradually increased. 

Although the number of mining claims brought into 
the Company by the Cain Consolidated was quite large, 
many more have been added. The management of the 
.Aurora has during the past year purchased a number 
of others, until today there are some 52 claims held 
under patent or in the process of patenting. Embraced 
in this territory are some of the most famous claims of 
the camp, having between 30.000 and 40,000 ft. of un- 
derground workings. 



58 



MINING AND SCIENTIFIC PRESS 



July 11. 19] I 



The Aurora mine is opened by a long adit which is 
now being extended from the Humboldt shafl work- 
ings toward the Del .Monti or Last Chance liill country, 
with branches to the Durand shaft and the Juniata 
mine-; opening these workings at a depth of about 500 
ft. The Last Chance liill was famous in the early 
sixties and eighties as a producer of high-grade ore. 
Prom Local Bources its production is estimated at over 
$20,000,000, the entire output having been won between 
the surface and the 200-ft. level, at which point the veins 
were lost. In some of the old pillars today in this part 
of the property are to lie found pieces of gold ore that 
will carry from $-1000 to $50(10 per ton in gold. 

Del Monte St 

At the Del .Monte shaft there is an old Cornish pump, 
which at the time of installation, was the largest in the 
United States, and cost, laid down at Aurora, about 
$150,000. It was hauled by team from Stockton. Cali- 





s' V*" 


f 1" 


- i 


■ X 


' i**^ 


m ^<-r>?l ' 


i 
i 






-1 


L* 


s 


-~r*-g| ' 




. **^L 


^ 


7/ " 1 jfl 






lL ^ 


mn 


,ll rite 


Aw^ 






Mm 

Mm 


0r* 4 



MOTOU IIUIVI" -Mil IS. 



fornia. The corner-stone of the building that housed 
this installation has carved upon it in large letters, 
'Wild West Mining Company, 1862.' This block of 
stone weighing several tons is now used as a mantle- 
piece for the fire-place in the manager's cottage. 

The ore is chiefly gold, with a small amount of silver, 
averaging close to $5 per ton and disseminated quite 
evenly through a hard quartz. The quartz veins vary 
from :i(! to 80 ft. in thickness and run through an an- 
desite formation. On account of the hardness of the 
rock scarcely any timber is necessary. The mine has 
been developed for mining by the shrinkage stope sys- 
tem, to which the property seems particularly adapted. 
11 is estimated that the cost of mining will be $1 per 
ton or less. The mine is electric lighted and equipped 
with an electric haulage system. 

The ore is drawn from the ehutes into 20 car trains, 
drawn by a 4%-ton electric locomotive. The cars are 
double truck, side dump, and were especially designed 
for the work. From the mine the train travels over a 



tram to the mill. The cars arc automatically 

.1. no Mop being necessary. They then pass 

the steel ore-bins where they are dumped for the coarse 
mg plant The trains then make a complete circle 
and come back to the main tracks. 

From the coarse-ore bins, which are of steel, tfa 
passes through a 7U Cates crusher. Thence it passes 
over a Gate! screen, where everything over an inch and 
a half is sent on to two No. 5 Gates crushers, where it 
is reduced to 1% in. Joining the undersize from the 
screen, it passes ,to the conveyor belt and is carried 
io the head of the mill, where it is further elevated by a 
elevator, carrying it to the sampling plant. A 
500-lh. sample is taken each day from the 500 tons going 
through the plant. 

From the sampling plant the ore passes to another 
conveyor by which it is carried to four steel ore-bins 
having an aggregate capacity of 1600 tons. From this 
point the ore passes through feeders to the stamps, where 
it is crushed to pass a quarter inch. From the stamps 
the ore passes to Callow tanks and then to Dorr classi- 
fiers. Thence it goes to 6 by 16-ft. tube-mills and a sec- 
ond Dorr classifier, where the — 200-mesh material is 
taken out. The -4- 200 goes to a second tube-mill where 
it is reground until all material passes 200 mesh. 

Prom this point the ore goes to three Dorr thickeners 
where it is reduced to a consistency of one to one. From 
the thickeners it passes through a series of 5 Dorr 
agitators and from the agitators to 4 Trent replacement 
machines, where most of the gold in the cyanide solu- 
tion is replaced with water. From the replacement 
machines the pulp goes to three Trent filters where a 
large portion of the remaining cyanide solution is taken 
out. the tailing going to waste. 

From the Trent replacement machines and the Trent 
Biters the gold cyanide solution flows by gravity to the 
lower end of the mill where it is pumped through Merrill 
clarifying presses, which are set on the thickener floor. 
From this point the gold solution flows by gravity 
through two Merrill precipitating presses, where the pre- 
cipitate is separated from the solution and sent to the 
refinery, and the barren cyanide solution is pumped to 
the stock tanks at the head of the mill. There they are 
enriched before being started through the mill again. 

Heavy Stamps 

Several unique features have been incorporated in the 
design of this mill. One of these is the heavy stamps that 
are used. These weigh 1660 lb. each, being among the 
heaviest in use in the United States today. Heavier 
stamps have been used with much success in gold mining 
practice in the Rand. The stamps are in batteries of 
five. Each battery is driven by an individual back 
geared motor of sufficient power to lift the stamps from 
rest and start them going without the necessity of hang- 
ing them up. 

The 6 tube-mills, as previously stated, are 6 by 16 ft., 
which is a radical departure from the type of mills here- 
tofore used in this class of work in that they are larger 



u i-'H 



MINlNi. \ND Mil i« PH 






ipablr 

mills 

of i\y>< mil i unii is di hp motor 

ard bearings und M 
,; Dorr i tuba nulls ui. 

unique m the fael thai they are the lavgi it 

■tructed The driven by » •'• lip. motor 

driving .1 line shaft, which is the onl) one in the mill 
The ll and replacement machini 

all individually motor driven. Hn tin- lower floor of the 



. 
to 1 1 1 mill purpi 

>ii il<. iiii inii.'l lilaclumitli 

boarding bouaea end bunk i 
superintendent'! roaidencc and is offl- 

The machine ihop is equipped with a full outfit 

pairing machinery of nil land* It is isjd that 
there is hardly anything at the mill l>nt whal eould 







J> i 




INTERIOR OF TIIK M7ROBA Mill. 



mill all the pumps are assembled in one room and are 
driven by individual motors. 

Another feature of the pliint is the automatic incline 
electric elevator. On the opposite side of the mill from 
the conveyor is the elevator which runs up and down 
from the top of the mill to the bottom to facilitate the 

men traveling, from one end of the mill to the other 
and also for the delivering of supplies to the different 
floors. The Trent replacement process which is in use 
at the mill has been tried oul for over a year in Arizona 
in various plants and has met with considerable success. 
Electric power is used throughout at the mine and the 
mill. This is furnished by the Pacific Power company. 
a subsidiary corporation of the Nevada California 
Power company. The power line is also connected with 
the main Nevada California power line so as to insure 



be repaired in the shop. It has a 20-ft. lathe, planers. 

an oxy-acetylene welding outfit, and all kinds and grades 

of tools. The carpenter shop is equally as well equipped. 

The mill has heen well arranged fhr convenience and 

economy. It is declared that when running at full 

eapaeity only IS men will he necessary to handle the 
full tonnage every 24 hours. This provides for a mill 
crew of four men working each eight hour shift, a re- 
pair ere« of four men. a superintendent, and a metal- 
lurgist. 

Lead, silver, zinc ind ore shipments from Broken 
Hill. New South Wales, in April were valued at 
*1 .830.000. 



MEN EMPLOYED at the Mt. Lyell properties. Tasmania. 
total 2100. 



60 



MINING AND SCIENTIFIC PRESS 



July 11. 1914 



U' 



lm® 



Mine accounts are often more elaborate than 
a medium-sized mine warrants. Little mines 
often stagger under a ponderous system of red-tape 
which the chief clerk or cashier adopted from a big 
operator's system. In general, mines are not pro- 
pitious places to quibble over bookkeeping technicali- 
ties. If the master mechanic wants a man-hole gasket 



the amount of cylinder oil used in the engine house, the 
boiler house, pumps, etc., the amount of black oil used 
for underground cars, etc. Then, of course, the engine- 
house items are apportioned to shaft-sinking, driving, 
hoisting accounts, etc., according to how much of each 
relatively was done during the month. The oils and 
explosives are, by M means, the only classes of sup- 
plies whid can be kept track of on a tabulated form. 
Whatever items arc used in large amounts at any par- 
ticular mine, such as perhaps timber or pipe-fittings, 



MONTH OP JULY. 1912 
SUPPLIES USED IN DIFFERENT ACCOUNTS 


EX 

PLOSIVE 


MINING 

TIMBER 


OILS AND 
WASTE 


NAILS 
AND 

SPIKES 


1 

ROCK 

DRILL 

TOOLS PARTS 


CANDLES 


ETC 


ETC 


ETC 








SHAFT SIN KINO FORTY BOXES POWDER. 


940. 


























: DRILLS %WO 4 BOXES CANDLES. S16 ETC 












■MO. 


18 










ETC- ETC (SHAFT SINKING TOTALS) 


290.10 


18.60 


2.70 






300.00 


16.00 










































STOPrNO 1M» MINING TIMBER 




m 
























40* COD NAILS, ETC.. ETC. ETC 








120 


















(8TOPINO TOTALS) 


1042,00 


78.00 


10.41 


1-20 


















UNDERGROUND HAULAGE ETC 























































Form 1. 



and 'wants it quick,' he does not like to have to make 
cut a lengthy requisition for it and charge it to the 
proper subdivision of the proper department: and if he 
is too much bothered by forms and clerical details, he 
will likely lose the company more money taking time 



OIL SHEET 



... 


EXOtXE 

HOUSE 


■OILS* 

HoVEE 


rtmn 


V O CASS 


MUCELUUTEOOt 


CTUMIU OIL 


> % 4 • 
T«AI B fU* 


I J 1 


i i • 

THU 11 flla. 






EXOIXE OIL 


a • a 


i i 


1 






■lack on. 








•j s a a s > 

T*UU 30 ;»i» 




KEBC5C-VC 












WATTE iWklWI 


io". io" 











can be conveniently recorded on a sheet ruled by the 
clerk to suit his ideas of the matter. This is a more 
efficient method of keeping track of supplies than the 
complicated 'countersigned' order blanks sometimes 
afflicted upon a mine by its Eastern secretary or 
auditor. If the mine clerk is overwhelmed with red- 
tape so that he has little time for anything else, he can- 
not go out for an occasional walk around the plant and 



EXPLOSIVES 





BRATT SCntKO 


DftirrtKo 


BToroto 


ETC 




DYHAMITE 10 


Tutu to Bon- 










roD 


T«U1 -J Bio u 










CAFE. ETC 











Form 2. 



Form 3. 



to grumble over its inconsistencies than the extra red- 
tape will save. 

In the Lake Superior iron ore district many of the 
medium-sized mines keep a fairly well-stocked ware- 
house and hire a supply clerk to tend it ; frequently, he 
is also timekeeper, and he makes out the monthly pay- 
rolls, charges and delivers supplies promptly, perhaps 
keeps track of cars of ore shipped, and is a valuable 
unit in the force and picks up many details whereby 
he can save the company money. 

Forms 2 and 3, the 'Oil Sheaf and 'Explosive Sheet,' 
are simple yet convenient methods for the supply clerk 
to keep track of supplies used in the different depart- 
ments. At the end of the month he can total up quickly 



observe that a car of rails is being unloaded in the 
wrong place, or that the mine boss left the powder 
magazine door open and a cow has wandered in there. 
The superintendent usually does considerable figur- 
ing, comparing, and planning over the monthly cost 
sheets. It is his guide and prompter; and it should be 
in his hands as soon as possible after the end of the 
month. At Lake Superior, the different accounts to 
which labor and supplies are apportioned and charged, 
include some twenty or thirty divisions of the mine 
work with items of exploration, development in rock, 
development in ore. pumping, stoping. hoisting, under- 
ground haulage, steam, air, and water lines, etc. It is 
also customary to tabulate on the cost sheet, a classi- 



.1 ill n 11. 1914 



MIMV. W ITIFK I'KI SS 



■ i 



the supplies used, m that tin- superintend 
tut ran tea Jotl how much timber, oik, ind mat 
plosiMs. candles, t. ■..;,. po . drill parte, pipe tod pip' 
Bttinga, raila and truck supplies, consumed 

during the month, For conveniently arriving at the 
total eoal of aaeh olaaaifieation of mppliea used in aaeh 
aeeount of aotivity around the mine, « sheet having 
ill.- general aeheme of 'Form l" is often naad Thia is 

« large si t. rnled al the printer 'a, and perhapa sev- 

.•ml will If required m the end of each month, aa all 

tlir re -.1- of mppliea need during tin' month are 

transfi rred to it. including the oontenta of thi 1 1 
SI i' an. I 'Explosive si t." which can then be de- 



form l is made "ut either bj the sup- 
ply clerk <>r tin- bookkeeper, an. I is then uaed in in 

|. tin I-. .ht sheet, a- it furnishes a complete record of 
ill mppliea u* .1 ami th< 

For venienoe in adding up tin- onmbei 

-s liii-ti aaeh man baa worked, when payment is made 
monthly, time books ''an be bought which have an extra 
column at tin- end "f every week, in which tin' number 
of shifts tor tin- preceding week can be mark.. I. si\ 

..r five, perhapa] per man Then at the end "t' the 

month, it i- nparativ.-h easj t.. add up the four 

".•.-Us totals, rather than t.. have t ant up twenty- 
five or s.i shifts inn' hv i. in 



The following opinion was delivered by Judge Fred 
If. W I. in th.' Superior Court of tin- State of Cali- 
fornia, in ami for tin- county of Amador, in the CI 
tin' Kennedy Extension Gold Mining <<>.. plaintiff, v. 
Argonaut Mining «'".. defendant, June 29: 

'Ph.' plaintiff in tins case is tin- owner of the Muldoon 

quartz mine ami millsit.'. a portion of the Jackson 

quartz mine, ami a portion i.f tin- Jackson placer 
mini', embracing an area of 54 acres, contiguous terri- 
tory. 'I'll.' defendant is the owner of the Pioneer quartz 
mini', adjoining plaintiff's property on tin- west, of the 
pioneer milMte ami the Volunteer quartz mine, adjoin- 
ing plaintiff's property on tin- north, ami of the por- 
tion of the Jackson placer mini' lying east of the .lark- 
son quartz mini'. 

Tlii- plaintiff became the owner of its mining prop- 
erty in May 1909 ami commenced operation of the prop- 
erty in tin.' month of October following. Upon tin- Mul- 
doon quartz mine there have been sunk two shafts. ■ 

of them to the depth of 1000 ft. with levels and cross- 
cuts. Upon the Jackson quartz mine there has been 
sunk a shaft. No ore has ever been mined or milled by 
plaintiff, or its predecessors in interest, from any of its 
property mentioned. All the work that plaintiff has 
ever done, since its acquisition of the property, has been 
to clean out the old workings, and perform such other 
work as it deemed important to establish its claim in 
this action, and all of the property was idle for many 
years prior to plaintiff's ownership. 

The defendant purchased its property in tin- year 
1893, from the Pioneer Cold & Silver M. Co. Previous 
to the time of the acquisition of the property by de- 
fendant, a shaft had been sunk to a depth of some TO 
ft. through the lava-cap lying over the apex of the 
Pioneer vein, and thence a drift extended northward a 
distance of 70 ft. along the vein. A tunnel was started 
in the Volunteer quartz mine, and driven 520 ft. to the 
Argonaut vein, and drifts driven north and south along 
the vein. Various other work of minor importance had 
also been done when, in 1893. the defendant started a 
shaft on the Pioneer millsite about 430 ft. down the 
slope and east of the apex of the Argonaut vein, and 



sunk it to the L460-ft. level. This shaft was started "ii 
the millsite fur the purpnse of getting dump room, ami 

to obtain sufficient pressure fr the reservoir on the 

hill. Subsequently stations were cut, and lev. -Is opened, 

and Btoping .1 from tin- 1200-ft. level upward to the 

290-ft. level, where the shaft intersects the vein. In the 

regular ami customary course of minim.', the defendant 
extended its shaft, opening ami developing various 
levels, ami mining and milling the ore and minerals 
until, at the time of the trial, the shaft had been sunk 
t.. tie- 3900-ft. level on the incline. In developing the 
mine below the 1240-ft. level, and following what it 

claimed to be its vein or lode, the defendant company 
'Mended its levels, drills, and openings, and extracted 
therefrom, and removed, ore and minerals of the value 
of many thousands of dollars, much of it underneath 
the placer lands owned by the plaintiff and its pre- 
decessors in interest. The damages cause, 1 by the re- 
moval of these ores and minerals are the Subject of this 

litigation. 

( 'i.aim of Tin-: Plaintiff 

On the part of the plaintiff, it is claimed that the lode 
in- vein from which these ores and minerals were taken 
formed no part of (he so-called Argonaut vein or lode, 
ami that it. plaintiff, is entitled to recover the valu.- of 
all the ore and mineral mentioned, upon either one of 
two grounds: 1 - its common-law right to the ownership 
of all minerals lying underneath the surface of its prop- 
erty, when not extracted from a vein having its apex 
within the exterior boundaries of land belonging to 
other persons; i2i that the ores were extracted from 
veins having their apices within the .Muldoon quartz 
and Jackson quartz mines, extended downward within 
■ erticaJ planes of the end lines of such claims. 

The defendant asserts, in its defense, that th -e- 

bodies mentioned were all obtained from, and for I 

a part of, the si. -called Argonaut vein, bavin;.' its apex 
within the surface boundaries of the Pioneer quartz 
mining claim. 

As to tlic plaintiff's claim under the common-law 
right to ownership of the ores, the same may be elimin- 



62 



MINING AND SCIENTIFIC PRESS 



July 11. 1D14 



ated from discussion, For it tan be sustained only by 
disregarding practically .-ill the oral testimony of the 
witnesses, and the opinion of the experts. The real con- 
troversy in the action is waged over the location of the 
apex of the vein from which the minerals were extracted, 
thai is: whether the ores were taken Erom veins having 
their apex within the surface of plaintiff's or of defen- 
dant's land, and the respective claims of plaintiff and 
defendant are based upon Section 2322 of (lie Revised 
Statutes of the United States. 

Plaintiff's claim, under such apex right, to the owner- 
ship of the ores and minerals mentioned, is based upon 
rhat ii terms the Jackson vein, by virtue of a union 
with the Muldoon gouge vein below the 950-ft. level of 

its mine. No continuous develo] nl of the vein has 

been made. M is uo1 the discovery vein upon which the 
patent to the claim was issued, bul developed exposures 
have been made upon which plaintiff has founded theory 
igical movements causing the formation of the 
great Mother Lode; that tin- Mother Lode fissure is a 
normal Fault with a displacement of some 700 ft., ami 
not an overthrusl fault, as described by P. L. Ransome 

in tie- Mother Lode folio of the I'nited States Geological 
Atlas: that instead of there being one vein with branches 
as claimed by defendant, and heretofore generally sup- 
posed in exist, there are a number of veins, formed at 

different periods nf time, which by their faulting must 
have prevented any com tion between the pioneer vein 

and the vein from which the ores and minerals in eon- 

i I'm « r-\ were extracted. 

It can serve no useful purpose to enter into a dis- 
cussion of the testiii y of many hundred pages given 

by experts in support anil refutation of this theory. 
1 pun the trial, the impression was strong in the mind 

of th' ( oui't thai there was great probability of the cor- 
rectness of iiiis theory, and after a subsequent examina- 
tion and consideration of the record, there is no attempt 

on its part to I Oncile it with the positive and prepon- 
derating testimony of practical men engaged in mining, 

and Familiar with ll onditions in llns mining district. 

Before this Court, however, will say that these men are 

all mistaken, and make a finding that will take the 
property in the possession of the Argonaut company, 
and award it to plaintiff, upon a speculative theory as 
to the convulsions and workings of nature countless 
ages before the time of man. it will require something 
more than a strong opinion as to the plausibility of a 
theory. As was said by the Supreme Court of Utah, in 
Grand Central Mining Co. v. Mammoth Mining Co.. 83 
Pac. Rep., at page < i T -I : 

Science has not yet unfolded all of Nature's intricacies, and 
in all probability never will, to such an extent that the fallible 
human mind can fully grasp them, though indications may be 
revealed. To look at a mountain is one thing, but to look 
into the inner recesses of the earth, through surface indica- 
tions is another. Every geologist, every miner, knows that, 
in determining the contents and aotual conditions of a moun- 
tain by surface indications, even with extensive workings, 
which, after all. constitute but slight explorations compared 
with the whole mass, such difficulties are necessarily and in- 



variably encountered as to produce differences of opinion, 
considering the same physical facts. Inductive reasoning has 
not attained such a high state of perfection as to lead all men, 
viewing the same parts, to the same conclusion as to the 
whole. Tins is especially true when the investigation of a 

• ""i of a thing is attended with great difficulty. In cases 

of stratified rock, where the beds are regular, it is compara- 
tively easy to determine the location of a vein; its strike and 
dip: but whfre the beds are broken, tilted, and fractured, 
and in places fissures running in all directions, the investi- 
gation of one party may lead to very erroneous conclusions 
as to the formation and contents in general, or as to the 
location and course of a particular section or ledge, a small 
part of its location and course only being definitely known. 

The mining' laws of the United States are framed upon 
the ideas of the practical miner as to what constitutes 
a lode or vein, rather than those id' the geologist. In 
this case, the testimony of practical miners, familiar 
with the conditions upon this part of the Mother Lode, 
is overwhelming that the Argonaut vein is continuous 
from the apex to the lowest level. Needless to state, all 
the expert witnesses for defendant concur in that testi- 
ty. 

While Hie plaintiff in this ease relics upon developed 
exposures only to substantiate its theory, and its claim 
lo extralaleral rights by virtue of its apex location, it 
contends that continuous development by defendant in 
its workings has disclosed interruptions or breaks in the 
so-called Argonaut vein which demonstrate^ that there 
is no continuity of the vein shown, as required by law. 
This, to my mind, seems to be the most serious objection 
to the adoption by the Court and qualified mining men 
of the inference of ihese experiences. 

The Continuity, of Veins 

\o arbitrary rule has been laid down which defines 
exactly what must be shown in order to establish the 
continuity of a vein. In speaking of this subject it was 
said by the Supreme Court of Montana, in Butte & Bos- 
ton Mining Co. r. Soeiete Annonyme des Mines de Lex- 
ington, 75 A. State Rep., 513: 

Laws of continuity," says Webster's Dictionary, "the prin- 
ciple that nothing passes from one state to another without 
g through all the intermediate states." Speaking ex- 
ii I by ibis definition, it would often be very difficult, if not 
impossible, for the challenged proprietor of a mineral vein 
to convince a jury of the continuity of a vein from one part 
to another, for there might not be continuity by actual con- 
tact of the parts of contiguity, which the precise word may 
literally mean must exist. Were such a rule inexorable, a 
failure of proof would not infrequently be brought about by 
the inability of the miner to prove continuity without transi- 
tion through intermediate states. The miner, therefore, might 
fall short of that exact measure of evidence required to estab- 
lish a continuity of vein which excludes any interruption be- 
tween one and another part of the identical thing, and, 
judged by too closely interpreted significations, the continuity 
of the vein would be lost. * * * Now, the miner's object 
is to disclose and mine the mineralized portion of the vein, 
and to do so economically. But he will not necessarily con- 
tinue his exploitation from an initial point. He may work 
at numerous points on the vein, or he may drive a tunnel 
through extraneous rock to tap the vein at a point quite 
remote from his other workings. 



I'M! 



MINING W UK PK 






116 1 8 

il uniform dip or ihh 

round in what, when th<- mini 
tnki n 

. k. with a ».il .l.nii.il viitll above ami baloa ..; 

porpb] r> : aliove or 

• in In- 

actly and conUnuoualj traced, and the 

i round between them, 

donbt thnt ii la Uii ami vain. Hut 

:i ih.- encloalni rock, called in mining 
parlun diminishes so at to lie m 

.1 short dlatani in dl 

.uul again Is found distinctly '" I 

• ii that, although the under 
uperpoelng country ruck is there, the n 

• be found, bul following the (Insure it re- 
in rerjr Boon, ii also happens thai both ; 
and niiK. ra! come in an end aiul are found no more in tliai 
ir, If found, so far off or so deflected from the 
1 line as to constitute no pnrt of thai rein. Of ■ 

to see thai i' la 'he same vein all 

see in some Instances the rein 

has run out: has ended. But there are other eases, of a 

class of which thai before us is one, where ii la a matter 

difficult; to l ay down auch rules for the guidance 

of a jury as will best aid them In arriving al a just verdict. 

The Mother Lode Polio of the Geological Atlas of the 

I'liiiml Siai.> at page B, Bays: 

Vims there may be many small veins or stringers together 

constituting what has been called a Btrlnger lead, or stringer 

Host "I the large mines of the Mother Lode are upon 

leads of this character, and their \i ins are really aggregates 

of many velnlets, 

W. II. Wiley, a witness for defendant, testified at the 
trial : 

Vi -ins. as I have seen them, are rarely distinct planes with 
two defined walls and one streak of quartz or other material 
between them, but they are usually complex, and in the case 
of the Mother Lode, there Is no variation from this rule of 
complexity. They have been termed stringer veins. It is 
an apt designation in describing portions of these lodes. 

•I. W. Pinch, an eminent geologist, a witness for 
plaintiff, in speaking of the Jackson vein, said: 

With its parallel stringers of quartz, there is a representa- 
tion of a true stringer vein. 

Other testimony in reference to stringer leads might 
be quoted, but that of these two gentlemen is selected be- 
cause they were chosen by the respective parties to the 
action to accompany the Judge of this Court upon the 
view of the property, to point out for inspection the 
various places deemed important to be seen, to obtain a 
fair understanding of the testimony given to support 
tin- theory of each side. If a vein were always an ore- 
bearing filling of a single fissure, the difficulties encoun- 
tered in this case and the wide divergence of experts' 
opinions would not exist. However, tested by the forego- 
ing quotations, from the opinions of the Courts and of 



IU Hint lb. ah l.y 

I in mining di 
■ ii tins .ii ,'.-i| l.y Hi.- evidence, 

when .mi rain i 

Minimis hi us ,i through tin- plaoer lands 

• if pliuiiiiir. even tho options 

ihowti in ■ 

In tin presentation "i us evidence to substantial 
claim by virtue of us apes rights, the burden »»s upon 
the plaintiff, Kennedy Extension Co., to show, by a pre 
pouderance of evidence, the apex and continuity of i )■•- 

Jackson rain, in order vercome the evidenoi the 

pari of defendant in its attempt to sin>« apex and con- 
tinuity of the Pioneer vein; that it to say. that if the 
conditions were reversed, and plaintiff had been in pus 

session, and mined il re and minerals from a segment 

of the vein in dispute, under a claim that it constituted 
ii part of the Jackson vein, less satisfactory evidence 
would be required to retain them than is ih>» required 
in recover their value from the defendant, Argonaut 
company. 

As before mentioned, there lias been no continuous 
development to show the continuity of the Jackson 

• I- : of its claim, plaintiff relies upon surface cuts, 

posure in the 180-ft. level of its mine, with drills 

.hi. I upraises therefrom, an exposure in the 4nn. tin- si if). 

and the 950-ft. levels, with raises and CrOSS-CUtS on this 

last-mentioned level, below which it is clai I that there 

is a union with the Muldoon gouge vein, whicl m is 

it with a vein from which the ores and minerals in dis- 
pute were extracted. The patent for the Jackson quartz 
claim «;is applied for upon a discovery vein oilier than 
the SO-Called Jackson vein. 

It devolved upon plaintiff, in its claim of extralaternl 
rights upon this secondary vein, to show the existence 
of the vein to an extent necessary to cover that part of 
the vein in dispute, from which the minerals and ores 
in dispute were taken. 

Hayman v. Wheeler, 29 Fed. Red., 347. 

Argonaut Con. M. & M. Co., v. Turner, 48 Par Rep., G85. 

Apex op Discovert! Vein 

Now. it is claimed that ihis apex comes to the surf; 

and is not what is known as a blind apex. A series of 
cuts or trenches was made, which it is claimed show the 
course of this apex. Every witness for defendant, prac- 
tical miners and experts, are positive that nothing is 
disclosed in these cuts which can be called a vein. As 
to the witnesses for plaintiff: Mr. Perry stated that a 
fissure was shown in each one ; that there were numerous 
Stringers of quartz east of the fissure, irregular and 
running in different directions. Mr. Devereaux. who 
had had more experience in mining upon the Mother 
Lode than any of the other witnesses for the plaintiff, in 
giving his testimony as a witness for plaintiff, said, that 
these stringers of quartz are a common occurrence in a 
slate country, whether near a large vein or not, and, as 
to some, he did not consider them a part of the Jackson 
vein. All the witnesses for plaintiff, however, are posi- 



64 



MINING AND SCIENTIFIC PRESS 



July 11, l'.iH 



tire iluti the Jackson apex is sufficiently disclosed. The 
indications specified, with the other testimony, are suf- 
ficient, ot course, to warrant an Inference of the exist- 
ence of the apex, but they also indicate that a different 
inference may be drawn. To me, however, it seems dif- 
ficult td understand how this vein, with its apex at the 
surface, should remain undiscovered until the com- 
mencement of this action, after SO many years of mining 
activity in this country. 

There are vexatious and embarrassing questions in- 
volved in this case, some of which seem to be impossible 
of an entire and satisfactory solution by the human 
mind, looking at them from an impartial standpoint. 
Bach side, apparently, can see no merit in the claim of 
the other, bid. viewing the entire testimony of each side. 

weighed in the scales, it seems al st evenly balanced.; 

but. as before indicated, this Court is largely influenced 

in its decision by the prej lerance of the testimony of 

practical mining men familiar with its history, ami its 
disinclination upon the evidence produced, to take the 
property from the possession of the Argonaut company, 
which it has obtained by its discovery and labor in 
prosecuting the work upon what it had every reason to 
believe, and was generally supposed, to be the Argonaut 
vein. It was I he intention of the Court to discuss in 
detail many of the interesting features of this case left 
untouched, but the opinion has been delayed through 
sickness and pressure of other labors, and undoubtedly 
both parties to the litigation will find more satisfaction 
in the announcement of a decision than in the perusal 
of a protracted opinion. 

The Court is of the opinion and decides that the con- 
tinuity and identity of the Argonaut vein is sufficiently 
shown to meet the requirements of the law; that the 
evidence does not satisfactorily establish the course of 
Hi.' apex of the Jackson vein: that the defendant. Argo- 
naut Mining Co., is entitled to retain the proceeds of 
the ores and minerals extracted from the segment of the 
vein in dispute, and to a judgment for its costs. Let 
findings lie prepared accordingly, and served and sub- 
mitted in accordance with the statute. 



Prodweftiioini aiadl Uses ©if Tumgsfteini 

By O. J. STEINHART 

.Much erroneous information from time to time ap- 
pears with regard to the metal tungsten and its min- 
erals, so that some notes on the subject, especially with 
regard to the commercial value and uses of these min- 
erals, may be of interest. 

The most important of the tungsten minerals are 
wolframite, or wolfram as it is generally called, hiib- 
nerite, ferberite, scheelite, and wolfram ochre, or 
tungstite. Wolframite, hiibnerite, and ferberite are 
essentially tungstate of irou, with varying percentages 
of manganese, and contain up to 76% of tungstic acid 
WO Scheelite is tungstate of lime, and contains 

as much as 80% WO a when pure. 

As regards the occurrence of tungsten minerals and 



their main geological associates, it may he briefly stated 
that they generally occur in the older rocks of pre- 
Cambrian and Cambrian periods. Wolframite is also 
found in quartz veins in granite ami also in pegmatite, 
often near and in contact with metamorphie schists. 

Tungsten minerals are frequently found in conjunc- 
tion with cassitcrite. Their separation from the latter 

generally offers no serious difficulty by means of electro- 

magnetic met hods, but it is a difficult problem some- 
times to separate very finely crystalline tin oxide and 
wolframite, especially in the presence of sulphides and 
arsenides. Such mixed concentrates have to be roasted, 
with the result that the cassitcrite becomes coated with 
a line layer of magnetic iron and is attracted by the 
magnet, SO that further chemical treatment is neces- 
sary. In milling mixed tin-wolfram ores it is gener- 
ally found that the losses of wolfram are greater than 
those of tin. 

.Many misstatements have been made as to the uses 
of tungsten. Writers have often copied notes m hooks 
on chemistry to the effect that wolfram is used to a 
considerable extent today in the textile industries ami 
for the manufacture of certain bronzes. The total 
amount of wolfram consumed for this purpose would 
not exceed a few hundred tons. By far the most im- 
portant application of tungsten metal and Eerro-tung- 
slen is the manufacture of self-hardening high-speed 
tool steel, which contains as much as 20% tungsten 
in conjunction with smaller proportions of other metals. 

Another important application for tungsten is the 
metallic filament lamp. The consumption of metal, 
however, for this purpose is of subordinate importance, 
for one ton of wolframite should suffice to make 18,000,- 

000 incandescent lamps. 

It is also reported that tungsten is used in the manu- 
facture of armor plate, but as facts referring to this 
subject are naturaly kept secret by the various gov- 
ernments, definite information is difficult to obtain. A 
further use, which, however, is not of great importance, 
is the employment of tungsten steel for the permanent 
magnets in telephones. 

Prices are often based on 65% W0 3 , and deduction 
of 2d. to 3d. per unit made for every unit below 65% 
down to 60% W0 3 , below which figure a still greater 
deduction is demanded by buyers. It may be said 
that wolframite and its varieties form by far the greater 
portion of the world's supply, and scheelite is of sec- 
ondary importance. Scheelite generally realizes from 

1 to 3s. per unit less than wolframite. 

Wolframite is easily identified by means of its streak, 
which is reddish brown, as compared with tin oxide, 
which is much harder and of a grayish white. If 
tungsten-bearing minerals are powdered and boiled for 
a few minutes with strong hydrochloric acid and metallic 
zinc added to this liquid, the yellow tungsten acid sue 
pended and in solution will change its color to blue, 
owing to the formation of lower oxide of tungsten. — 
Financial Times. 



.IiiK 11 r»u 



MIMV. WD S< II. Mil K PRI 







if Ike Mi mm. »mi Si ii mi>u I'm >~ 

and uthrr m<. : hihi.1 tO », imokj .In-/ »i( tallu ' UV I'hr /'</'/• 

(" hit iblt than ..nun/ ntmpllmenl. I inert Ion •■! any oontrib* 

■ ■ :■;, , , uf this ,,,||r rill/. 



The Editor: 

Sir In your issue ol January 17 is ■ letter by M 
ii. P Sohnlviu, under the above beading, referring to 
mi article by Mr. Tail of October 18 dealing, among 
other things, with the Anchor mine. As published in 
the yearl.i report, the figures are confusing, 

There are !»•> mines worked together, the Anchor and 
the Australian; the items (1) total ore treated, 104.73:2 
ions. (2 black tin Raved, 188.6 t"iis. includes both 
nun, s. The tin per ton, :t.42 lb., referred only t" the 
Anchor mini'. The correct figures are; 

Anchor. Australian 

Stone crushed, tons 76497 28,626 

Black tin saved 184 1 7cwt 68 L l9c\vt. 

Pounds per ion 3.42 5.02 

Tons per stamp In 24 hours ."• .::s 6.11 

Cost 3/6 3/6'4 

Tin si- appear in another portion of the report. In 
all cases long tuns of l"_'40 lb. arc referred to. 

His other assumption, however, that 5091 is lost, is 

not borne out by experience. Fr r sampling, grab 

samples from the ore on the way t" the battery, peri- 
odical sampling of pulp from the mortar boxes, indi- 
vidnal sampling of tailing from different tables, and 
continuous automatic sampling of all the tailing, my 
conclusion is that the loss is not nearly so great. An 
examination and a sampling of the tailinL-s deposited 
in the stream and on the Hats below the battery, indi- 
cates a still smaller loss. As I am not satisfied with 
any of the results, however carefully they are worked 
out, I <lo not '-are to publish them. At the same time, 
it does not appear to me that the loss is greater at 
any time than •J")',, that is. on Anchor ore — it would 
probably not exceed 1 lb. of oxide per ton of ore 
treated. On Australian mine ore, the proportion would 
be less. 

It is only of late years that the Australian mine 
has been worked, and the average value of the ore 
for ahout ten years at the Anchor mine was 3.42 lh. 
oxide. The period referred to in the editor's footnote. 
in which a loss of $8500 was incurred, was for the 
financial year 1009-10. In some years a fair profit was 
made: for instance, in 1906-7, 153,738 tons was treated 
for a return of 2.206 lb. of metallic tin per ton. or 
3.28 lh. black tin, at a cost of 55 cents: for that year 
87.249? stamps crushed 5.85 tons per stamp in -4 hours. 

with a net profit of over £5000. With a constant water 
supply, a good run. and a decent price for tin. we 
can make a fair profit on ore with an average value 



12 lb oxide, I nfortunately, for some years tins 
ias ii,, i been possible, ami our yearlj output has been 
reduced so that cither the profit has been smal 

loss lias been made 

The -tone worked is granite of varying di 
hardness. Of late years it has been much b 
ducing the capacity of battery and increasing 
As u ill be seen fi i the crushing returns I Anchi 

ions per stamp in -I hours; Australian, <i.11 ton- per 



Ge 'a s C'±~*f>* * 



|oeo o"o| jo o o oo| loooo o] 







lljFn ITTFQ 




APPROXIMATE FLOW-SHEET, ANCHOK \l I M . LOTTAH, l\~'l\M.\. 

Stamp), the Australian Stone is easier crushed and 

resembles the stone from the Anchor some years since. 
.More or less overburden has to he removed, consist- 
ing of surface soil and barren granite. The latter is 
usually decomposed and capable of being hydraulicked, 

luit contains hard masses and seams, in some rases 

forming 50% of the material. These have to be blast- 
ed and trammed to spoil banks. In some eases this 
overburden is over To ft. deep, and overlies only 30 
or 40 ft. of profitabl 'e. 

The stone is run in some cases by gravity to the 
crusher station, but in most cases is hauled up in- 
clined roads by friction winches. The crusher station 

consists of a No. S Heclon (Hadfield & Jacks ; the 



66 



MINING AND SCIENTIFIC PRESS 



July 11. l!iu 



stone from this is elevated by a buckel elevator to a 
No. 4 Gates crusher, and from this goes to bins from 
which wagons are tilled that run by gravity about 12 
chains to the battery bins. Challenge Eeeders deliver 
the ore to l (| " bead of stamps in two sheds o 
The Btamps are nominally Kmii lb., but really about 
900. From the boxes the pulp proceeds to simple two- 
compartment hydraulic classifiers. In the two sheds 
the arrangement of the concentrating plant is si 
different and immaterial alterations are continually 
being made In the first instance, the products of 
classifiers went to two sets of double-compartment 
liar/, jiu's. but the ore was so poor that these were 
very imperfect concentrators. 1 would not care td 
use the jigs on a tin ore that did not contain at leasti 
%% of fairly coarse tin. These jigs also required a 
considerable amount of power, and dressing water. In 
the present practice, the first and second classifier 
products go to shaking-tables ("Wilfleys, Cards, <ir 
tables of our own design and construction). The over* 
flow from classifier goes to settlers and thence to 
other tables. From the tables we get firsts and sect 

Onds, those from first floor go to jigs that remove any 
topaz or other heavy sand, pieces of iron. etc. They 
are then further cleaned by "hand in a hydraulic dresser, 
ami are bagged. These we can get up to 73 per cent. 
The overflow from first settlers goes to other set- 
tlers that feed Fnie ranner& or shaking-tables. The 
tailing from tables on top floor goes to settlers that 
feed other shaking-tables, and from second floor to 
settlers thai supply Borlase huddles on the bottom 

floor. These are very inefficient machines, hut as they 
require cleaning up about every six weeks, and 
only then produce a hundredweight or two of oxide, 
their presence or absence is not a serious matter. The 
concentrates from all these are redressed on the hy- 
draulic dresser when coarse, and are dressed in a hand 
I kieve or tossing tub when fine. The slime 
dressed on a Frne vanner and re-dressed in 
hand buddle and kieve. The tailing from all these 
is handled and re-dressed over and over again in the 
anciently approved Cornish method. The seconds we 
get up to 68 to 70%. This scheme is indicated ap- 
proximately in the attached flow-sheet, which, however, 
omits many of the minor steps. 

Many slime machines have been tried, including one 
of my own (which was a failure), canvas strakes, can- 
vas bi 11 tables, circular tables, etc.. and we can find 
none better suited to our circumstances than the Frue 
vanner. It is not so efficient, however, as the shaking- 
table on the coarser tin, as it is of less capacity. The 
rubber belt also requires frequent renewal, and when 

iri I' rubber is high we can make a complete 

shaking-table which will outlast many belts for less 
I han th ist of one. 

The ore is a good milling one. and fairly coarse 

crushing releases nearly all the tin. Tyler slotted 

screens with an aperture of 0054 in. are used. More 
than half of the tin will pass through a 200-m n sii 



screen. Tower is from water, with two supplies, the 

main of 880 ft. head, the smaller with 500 ft. head 

applied through a number of Peltons. For normal 
work, nearly 1000 cu. ft. per minute is required, and 

very rarely is available. The opening of the country 
for cattle graaing, and hush tires, has rendered the 
supply precarious, and the steep hillsides, broken into 

mam narrow gullies, make water conservation on a 
sufficient scale impossible. Many schemes have been 
considered for improving the power supply, but finan- 
cial difficulties have prevented their construction. The 
main water-race is about 30 miles long and contains 
several miles of timber flume which is always suffer- 
ing damage from hush tires. Hoods, droughts, and fall- 
ing timber. The earthen portion does not suffer so 

severely, its principal enemy being the 'platypus' 
(called for short the Ornithorhynchus paradoxus), 

which burrows into the hanks and lets the water out. 

The minimum rates for labor are $1.92 to $2.04 per 
8-hour day. The local men usually are a fine class 
physically, use their brains, and are reliable. The cas- 
ual hands are not so satisfactory. In the early days 
of the mine, rock-drills were used, but the result was 
not satisfactory. Lately hammer drills have been used 
with success for drilling the boulders. 

It will he seen that there are facilities for cheap 
work, and that our costs could be reduced with a 
constant water supply. On the other hand, on the 
west coast id' Tasmania, with a severe climate, and 
higher wages rate, there is the Renison Bell tin mine 
(which 1 am also responsible fori, with a 10-head bat- 
tery and an output of barely 20,000 tons per year, 
where the working costs at present do not exceed $1.44. > 
This does not include prospecting and development 

costs, which at present are high, sometimes ex ling 

the amount spent iii mining. The tin oxide here is 
much finer and more difficult to save than that at the 
Anchor and Australian mines. I am at present 
doubling the battery, and hope to reduce costs and 

increase output considerably. 

T trust that I have supplied all the information de- 
sired by Mr. Sohnlein. 

James R. Lewis. 

Melbourne, Australia. April 21. 

[The resume of the milling practice at the Anchor 
property presented by M. Lewis will undoubtedly an- 
swer Mr. Sohnlein 's query. We regret, however, that a 
more detailed analysis of production costs and milling 
results are not available. It is evident from the above 
letter that an extraction of much better than 50 per 
cent of the tin is being made, which with the confusing 
manner in which the Company's returns are published 
accounts fertile apparent discrepancies. Thai low costs 
Hi common in tin mining is also evidenced by the re- 
turns from Ml. Bischoff, where the cost per ton of ore 
mined, which is mostly by open cuts, crushed, concen- 

trati ' ,i d smelted at L; lestnn. 100 miles away, is 

only $1.15 per ton. With such a cost, comparatively 
I .u grade ore may be profitably handled. — Editor.] 



11 p'll 



\il\l\i. \\; : 11 it I'M 






COMCEMTEATES 

■ t rply i» ■, 

• I 



kept ni iin- rescue stations of the 
i 8 Bureau of Mines in thi-. country, and 
stations abroad, and forui part of the rescue equipment 
«t some mines. In • - in mines small ani 

may be usod repeatedly without danger of their 
eptible '.. carbon-monoxide poisoning 
after man] exposures than after the Brat, if thej arc 

allowed i'i recover between exposures, a irding t.. 

A. Burrell, Frank M. Seibert, an. I 1 \V. Robert 
son. Canaries are less resistant '•• carbon-monoxide 

p. .i^ ig than mice, chickens, rabbits, guinea pigs, or 

It is i' mmended that canaries be used when- 
ever possible an. I that al least thr f them be carried 

liy an exploration party. Men may display distress 
in the presence ..i proportions of carbon monoxide as 
small as 0.10%, whereas small animals in the same 
atmosphere may show no signs of being affected'. 

'I i ui'i r air and rock in the St. John del Bey 
mine, Brazil, during the four h«t months of 1913-14, 
namely, 1> raber, January, February, and March, an- 
as lull. .us. a ir. I iiiLT to the annual report of the sup. -rin 

tendril t, i leorge < 'halmers: 

von Depth on in- Air. Rock, 

clinc-. ft. Deg. P. Deg. P. 

100 77 7s 

s 2300 M 

10 2800 BE 85 

11 3100 85 *7 

3400 86 88 

3700 ^7 89 

4 i 89 92 

1300 90 '.'l 

1600 91 97 

4900 9S mi 

5226 97 104 

All temperatures were taken in the downcast. A 
large Sirocco fan is in continuous operation, and an- 
other is being installed. When the workings are all c in 
il with the main ventilating system, the following 
air temperature is expected: horizon 18, 92": 17. 91 ; 
16, 90 : 15, 89 ; 14. 88 ; 13, 87°; 12. 86°: 11, 85°; 

10, 84 ; and 8, 82°. Rock temperature al the tii 

opening horizons is as follows: 8, 85°: 10, 89°; 11, 91°; 
12, !M ; 13, 96 : 14, 99 | 1.".. L0] ; 16, 1":i ; 17, 106"; 
.,,,,1 is. 108 . The pasl year shows a slighl reduction 
compared with the previous year. 

]■'< nder < hains a re being installed al the various locks 
ai Panama to prevent vessels from possible injury to 
lock gates. There will In- 24 chains in all. of which 15 
have been made, and aboul four have arrived al the 
Canal . mi They are the last of the large items of the 



lock operating and protective devices to be installed 
The delivery of the chains, which are of unusual 

and present man) difficulties lauufacturc, has been 

uncertain, Chains have becu under order at three .lit 
ferenl American chain ».nk-. simultaneously, and the 
I'anama .-anal is now inviting tenders from Europe for 

maining nine. The chains average from lis 
ft, in length, and the two for protecting the lower guard 

at Miraflorea locks are each 784 ft. longj being 
k| ially arranged on account of the tidal fluctuat , 

weigh about 85 lb. per foot, nearly three times as 
much as the heaviest rails on the I'anama railroad. The 

links are made fr bars •'! in. diameter, and each link 

in the principal pari of the chain is 17 in. long by 10^ 
in. wide. The .hains are designed to withstand uor 
ma liy a tension of 220,000 n... or approximately l"" 

i. .ns. which is about 50$ of their breaking load. 

Glaciers in Alaska have i n studied by the United 

States Geological Survey, and in a report on the coastal 
glaciers of Prince William Bound and Kenai peninsula 
li\ r. s Q ran I and l>. P. Higgins the following is the 




GI.ACIr.lt OS THE ISKOOT RIVER, WHASCEI.I. DISTRICT, ALASKA. 

summary: Some of the glaciers described, the Valdez, 
shoup. Columbia, those of Port Wells ami the Bear, 
have been under observation on several occasions during 
a period of 10 years. On the whole, the glaciers here 

studied di t give uniform evidence as to a general re- 

treal or a general advance within the last half century; 
some are evidently in a period of retreat and others in 
:, period of advance, and the general balance between 

retreal and advance ca be i urately determined by 

data now at hand. The accompanying halftone shows 
■ i glacier mi i he [skoot river. 



68 



MINING AND SCIENTIFIC PRESS 



July 11. r.iH 



REVIEW OF MINING 

a.6 been at the world's greut mining centres by our own correspondents. 



NEW YORK 

MiNiNfl is Mexico. — G ben fell Failure ami the Canadian 
Aoency. — Dividends Passu. by. Mining Companies. — 
CiiiNo Bonos. — Oil in Japan. — Butte & Supekiob New- 
Claims. 

The success of t lie Constitutionalist troops in Mexico is 
steadily putting one after another of the mining districts 
within the territory controlled by the rebels. Operations 
at Cananea and Moctezunia have not been seriously inter- 
fered with, and the American Smelting & Refining Co. is 
about to start its Chihuahua plant again. The Velardena, 
Torreon, Matehuala, and Aguascalientes plants are now all 
in Constitutionalist territory, and as far as safety to the 
operating staff goes, could be blown in. But the first requi- 
site for smelting operations is good transportation facilities, 
and, though the railroads are available, they are kept busy 
moving troops. It is reported that very little damage has 
been done to the smelting plants, and that the mines are 
in ;;ood order. 
The Grenfell failure in London has many ramifications. 

i which is the probable collapse of the Canadian Agency's 

milling operations in Nicaragua. This Company had taken 
an option on the Siempre Viva, which is controlled by New 
Orleans investors: the Bonanza, owned by Joe La Pierre; 
the Lone Star, owned by Richard McGinnis; and the Mars, 
a small property; all of them gold mines in eastern Nica- 
ragua. Development work has been progressing in good 
shape, but in its present condition the Canadian Agency 
will probably have to let the options lapse, and the proposed 
solidation of these properties will fall through. 

At first thought it would seem that the present 'psycholog- 
ical' depression of business should have no effect on mining, 
but in one way or another it apparently has. Since January 
1 the following mining companies have passed one or more 
dividends: American Zinc & Lead, Assets Realization, Cop- 
per Range, Dominion Steel Corporation. Mines Company of 
America, Mohawk, New Idria, Pennsylvania Steel. Quincy. and 
Tonopah Extension. The Calumet & Hecla reduced its dis- 
tribution from $G to $5: New York. Honduras & Rosario. from 
:',< , to 2',: Old Dominion, from $1.25 to $1: Utah Consoli- 
dated, from $1 to 50c; and the United Globe Mines, from $7 
to $4. Some of these companies suffered from the strike in 
the Lake Superior region, and others from the trouble in 
Mexico: but the net result is thai mining as well as general 
business is in a period of depression. 

Out of the Chino bond issue, convertible into stock at $25, 
all but $3000 has been converted. The Bingham & Garfield 
Railroad bonds, exchangeable for Utah Copper stock at $50, 
have not been completely taken up. and $657,000 is still 
outstanding. The exchange privilege ceased on July 1. 

Duluth investors have formed a new mining company, the 
Cactus Consolidated, organized under the laws of Delaware, 
with a capital of $1,000,000. 

At the end of May. oil wells of the Nippon Oil Co., at 
Kurokawa. Akita prefecture, were gushing with considerable 
force. According to K. Ito, one of the Company's officials, 
work was started on one well early in April, and oil was 
struck at 1368 ft. The other five wells in the district, which 
required pumping, ihen started to flow to the surface. I'ntil 
I. the new well produced about 12,000 bW. per 24 hours. 
Very little gas accompanies the oil 



On account»of the Butte-Milwaukee Copper Co. selling its 
property to the Butte-New Vork Copper Co., the stock of the 
latter being controlled by the Butte & Superior Copper Co., 
the Butte & Superior secures five claims adjacent to its mine 
at Butte, and six claims in the Argenta district of southern 
Montana. The Butte-Milwaukee claims are a valuable addi- 
tion to the Butte & Superior property. 

About 05', of the gold output of Peru in 1912 came from 
copper ores treated at Cerro de Pasco, according to figures 
just published. This revival of one branch of mining stimu- 
lates others. 



TORONTO, ONTARIO 

Black Oil Stbi'ck 70 Milks FBOM tiik White Oil OF Caluaky. 
— Canadian Goi.dkiklds Syndicate to be Liquidated. 

Another find has been made in the Calgary oilfields, fol- 
lowed by a renewal in a somewhat milder form of the excite- 
ment resulting from the Dingman well. Crude black oil was 
found in the Monarch well on June 17 at a depth of 808 ft., 
and is believed to occur in quantity, but drilling was suspend- 
ed until the well could be capped to avoid a rush of oil. The 
find is considered encouraging, as showing the extent of the 
field. The Monarch well is situated 30 miles west, and 
miles south of the town of Olds, and is about 70 miles north- 
west of the Dingman well. There was a flurry of stock 
speculation when the announcement of the discovery reached 
Calgary, and the shares of the Company, of the par value of 
$1. sold as high as $50. The Monarch is capitalized at $200,000, 
and controls a territory of 122.952 acres. The second well on 
the Dingman claim, distant about 100 yards from the first, 
was at the last report down 250 ft. The first well will remain 
closed until ample storage facilities are obtained. The 
directors have ordered twelve 12.000-gal. tanks to be installed 
near the well. The pressure is sometimes as high as 360 lb. 
per sq. in., so that it is considered advisable to proceed with 
caution lest the flow of oil should become uncontrollable. 
The Calgary boom excites but a languid interest in Eastern 
Canada, and does not appeal to the speculative public to any 
extent. Heavy losses in Cobalt and Porcupine ventures and 
real estate at fictitious values, combined with the tightness 
of the money market, have rendered the lambs a good deal 
kss frolicsome of late, and more disposed to heed the warn- 
ings of experts and newspapers against reckless speculation. 
Reports of other oil discoveries in the Calgary field and at 
other western points, have appeared, but have so far been un- 
confirmed. 

At a meeting held in Montreal on June IS. the directors of 
the Canadian Goldfields Syndicate decided on a legal distri- 
bution of the assets of the Company, a meeting of the share- 
holders being called for June 2s to authorize liquidation 
proceedings. The plan proposed is that the properties in 
British Columbia be put up at auction in Montreal on August 
4. and sold to the highest bidder. The Consolidated Mining 
& Smelling Co. stock held by the Company, together with any 
money received from the sale will be distributed among the 
shareholders pro rata. The Syndicate was organized at the 
height of thf Foos'and I'oom to trade in the shares of min- 
ing companies, but with the exception of the transaction which 
secured it 4270 shares of the Canadian Mining & Smelting Co. 
its ventures proved unprofitable. 



11 l'l I 



MINING \\l) & I! Mil li I'M S.s 



WRAXOELI., 1/ 1>A l 
Am » kxo Huroai "i Durrain Omanum i> tin Tutsan 

■ k III v-i I'm I k , Snail!! , til v. l> a. Win u.m.-i, I I , 

i > Iskooi Kiiih Dunn 

Uranm'll mining .li-i . « ,, i„tn| m 

■■I whit ' mainland and Um 

| lllllrs 

(Vrangell la the en ond eldest settlement In I 

■i established aarlj in the nineteenth ranturj b> 
ill- R trlemn Pui I lentl) «.i- ■ irnd 

H ol tin H 

* ..I the Btlklne run iii I8tt, and the tollowlnj year 
i am Bltks Into thai dl 

In int.. McCullough and Tlbbltta, two praapectora, i id their 

!. foi gold "ii tbe i 

tha range and started down thi stikine river Natives 
i them t.i i ten m t ■«->« belo* Telegraph oreek, 

•lour gold had been found, The] reported the disco 
ol rich told In what became known as the Caaalar countr] "t 
northern British Colombia and flfrangell became the supply 
lor the gold rush thai ensued. An American garrison 
labllahed there. The Casalar properties are the rem 
iiaui* of iln' richer placer deposits, and preaenl activity is 
rned with the loa grade deposits. 

■ 1. syndicate has purchased tin- property of 
the Boulder Creek (dining Oo. on Thlberl creek, a tributary 
.■I Dease lake, and hydraulic operations are being conducted 
Kiny men are operating four giants, the water being oh- 
i from llouldiT creek, when' a 22" II. head Is available. 
The Company is owned by Lord Beauclerk and Warburton 
Pike. 

W. M. Ogllvle. n son of former Governor Ogilvie of Yukon 
Territory who was the founder of the Yukon Gold Co.. has 
■-ini. it is said, in organising a company In Montreal 
to operate a dredge In the Dease Creek Mais He prospected 
thi n lasl summer with an Empire prospecting drill and Found 
Streak at a depth of 40 ft. on the White Horse lease. 
which was purchased from J, Hyland. He returned recently 
10k ili" iirill to UcOames creek, where he now Is pros- 
Bench ground In thai district is looked upon as fav- 
orable for hydraullcking. Ten Chinese miners, who are 
remnants of a hand of 50 which started work in the seventies, 

still work on the creek. -G. H. Pendleton, working on his 

claims 12 miles from the mouth of McDames creek, is finish- 
ing a bedrock drain two miles in length which lie hopes will 

OVi n utin- the water trouble. R. W. Mitchell and Finlay 

•11 are operating a hydraulic plant on Little Deloire 
creek, a tributary of ThiberJ creek. Pumps were taken In this 
summer and automatic gates and Barnes are used to control 
rhe water. The Mitchell brothers have been working on the 

creek for II years. The liufflcmcyer bench leases on Dease 

creek have been acquired by .1. G. Galvin. a miner formerly 
ol Nome. Alaska. Last winter two bedrock drains were in- 
stalled, one 200 and the other 150 ft. long. Returning to 
Wrangell last month, he reported having found gravel assay- 
Mi. (6 per cubic yard. He brought out $400 in coarse gold 
obtained by panning. He intends to install hydraulic equip- 
ment before winter. Captain C. Conover operates a lay on 

plater ground at the mouth of Clearwater creek on the Stikine 

liver and is taking out a few thousand dollars each year. 

The Dease Creek properties are 400 miles inland from Wran- 
gell. A journey of 160 miles by river steamer to Telegraph 
creek is necessary and from there a land journey of 72 utiles 
and the rest of the distance by river boat from Dease lake. 

L. Kirk, mining on the Stikine 25 miles below Telegraph 
creek, has two adits aggregating 500 ft. in length, which have 
been driven to open a deposit of bornite. Eighteen miles in- 
land. J. F. Callbreath is prospecting a deposit of copper ore 
near Glenora. 






>ii So, i'l, and N 
an, i around 

«<-n and eii-bi mlli i from tldewatei bars bean optloni 
" '■ '" "■' ' ' b.ii al W rangi n i be 

in- on Hi.- Johnson Olson prop 

be smith, its it . i. mi 

on the N< i-"ii i . ii i he altitude "i thi fi 

' shipment ol 16 loos ■,, u„. 

"ill anil pun in ibs ia. ..in. i i ii,-, ii,,. tvet 

age yield was M0.80 pe Bnglnoi nting three 

mis «in make an examination "i the pi irtli during 

the Oral week In July, according to preaenl sdvta 
'ii,,- Olympic Mining '" claims on Woewodskl I land "• 

being devel .1 bj B. B. Harvej A 100-fl ,,,iit and s 150-fl 

« comprise the preaenl development The Maid "t Mexloo 

three miles Inland from the Olympic els 
being developed. 

Devel in "'tin - "it the Jackson No I and lackson No 

2 coppei claims al Lake bay, which are owned bj alien McCul 
lough. N M. Tale. Ii. P. Qsas, \l L. Hut I.e. and I. Kin. bait. 
A train roadway has been bull) Iroui tidewater in the claims, 
a tunnel litis been driven 10 ft., and a 80-ft winze sunk Two 
other -bans aggregating B0 ft make up the reel of the wok. 
Four tons of ore shipped to the Tncoina smelter assay.-, I :,■ , 



i 
^ lv- 


, k 

\ iVl 

BErftT 





OKF. BUNKERS. -II llllll MINING CO., -I LZEB. II.ISKA. 

copper. One hundred tons of ore are on the dump, awaiting 
shipment. 

Burdell & Dickson have from 18 to 12 ft. of galena ore 
on their claims on the left limit of the Stikine 12 miles below 
the mouth of Clearwater. Samples assayed $2110 to the ton. 
John Sales is developing a free gold property on Eagle Crag 
mountain, on the left limit of the Stikine. 15 miles from 
Wrangell. Berg & Son have a galena and a quartz property 
on Arens creek. 18 miles from Wrangell. A three-mile road 
has been built from the beach to their claims, preparatory to 
Starting development work. 

The Iskoot river is demanding the attention ol the mining 
men of the district, although the Inaccessibility of the region 
makes development costs prohibitive. The Iskoot is a tribu- 
tary of the stikine on the south side, entering about six miles 
above the international boundary line. A group of 11 claims 
seven miles below the canon on I he Iskoot is owned by P. C. 
McCormick. C. M. Coulter. Alex Vreatt. E. S. Busby, George 
II. Whitney, Bruno Greif, John Maloney, and F. E. Bronson. 
Nine of the claims will be crown granted ( patented I this 
fall. A chalcopyrite deposit from 3 to 6 ft. wide has been 
traced w^ith surface pits for a distance of 600 ft. Four adits 
have been driven, each 60 ft. long. Thirteen different veins 
have been developed since the claims were first staked In 



To 



MINING AND SCIENTIFIC PRESS 



-Iiilv 11. 1914 



1909. J. O'Sulllvan, of Vancouver. B. ('.. bi d three 

..i ore i loin the claims us follows: (i | 102.8 oz. Bllver, 
is I', copper; (2) 0.06 o gold, 41. n oz. silver, 659i lead; 
:;i o. in oz. gold, 6.76 oz. silver, '• , lead. 
The rock exposui tes, lim< stones, schists, and 

stones, highly metamorphosed. Chalcopyrite occurs in sheared 
one and also in Quartz reins which cut the 
series diagonally. A report of the Tyee Copper Co. smelter 
at Ladysmith, B. C. shows the result of a test shipment of 
ore weighing 232-1 Hi.: i.V,; silver. 41.1s oz.; gold, 

0.00 oz.: total value J44.il. The owners now are completing 
plans lor another smelter test to be made before winter. 
The lskoot is not navigable because of the rapidly changing 
current. 



PLATTEVILLE, WISCONSIN 
Dull Markets. — Spelter Stocks — Paicss. — District Produc- 
tion kii i ii i n i ,ii, -. — Buyebs hi or Di'aixo i in Month. 

The month of .June showi d general depn ssion io both metal 
and zinc ore marketa. This, according to on< o( the leading 
smelter representatives operating in this field, is due to 75.- 
(100 tons of spelter remaining unsold, and now being carried 
on the inventories of the spelter manufacturers of this coujo 
try. This representative added that no improvement in the 
metal markets need be anticipated for several months, if even 
then, but that as far as this field is concerned he looked for 
no greater curtailment In production than has already taken 
Production of raw concentrate declined considerably, and 
Shipments include about 1000 tons of reserve ore carried over 
in bin for several months. The total reserve held in the field 
at the close of the month was a little over 5000 tons, the Wis- 
consin Zinc Co. reporting that it alone was holding 3000 tons 
of ihis amount. One of the leading buyers for the field re- 
ported the following average of prices for the month, including 
all grades produced in the Wisconsin field: 30%, $12.50; 85%, 
$16; hi-,. $20; 15%, $24; 50%, $80; 56%, $34; and 60%, $::s to 
$40. Li ad ore was out of favor all the period, metal ruling 
at $3.80 per cwt.. with the best bid reported for ore at $45 
per ton. Producers showed no inclination to respond and 
only three cars were shipped. Pyrite was off, and only one 
producer mil any pretl us" to offer ore in quantity, shipments 
totaling less than one-half that usually sold. Carbonate Of 
zinc ore ruled high. Inn producers were offered no market, 
and they contented themselves by cleaning-un their product 
and holding it in anticipation of a better demand. 

Deliveries were made for the month by districts as shown 
in 'he following table: 

Zinc Lead Sulphur 

Districts. Pounds. Pounds. Pounds. 

Galena 4,984,000 80,000 

Benton 4.216.000 1,990,300 

Hazel Green 2,410.00" 60.000 

Cuba CiU 2.046.000 

Livingston 1,920.000 

Harker 986,000 73,61 

Platteville 924,000 

Shullsburg S94.000 

Linden 820.000 

Dodgeville 342.000 

Mineral Point 124. I 

Highland lus.unn 

Montfort 7S.0OO 

Mineral Point Zinc Co 2.9SS.4O0 

Total" 22.s4ti.40n ls:l,61ii 1,990,300 

The gross production of concentrate for the month from all 
mines aggregated 17.Tlo.320 lb. and net refined ore deliveries 
to smelter 11,234,730 lb. The Mineral Point Zinc Co?, as usual. 
set the oace In bidding at all points in the Beld. and carried 



■ en market offerings. Heavier consignments 
■ ii high-grade ore were made during the month and the Held 

pared to make a better Knowing in this i 
The Dodgeville district, idle lor set 
has conn- to life once more in the -McKiiilay mine, which is 
shipping regularly, and from which n irts are now 

expected. 

Sales were distributed among the buying concerns as ur 
lows: Minem] Point Zinc Co., 5094 tons; National Separating 
Co., Cuba, 1032 tons; Campbell Magnetic Ore Separating 
Works. Cuba, 640 tons; American Metal Co.. 611 tons: Illinois 
Zinc Co.. all premium ore, 558 tons: Empire Roasters. 
Platteville, 451 tons; American Zinc Co.. Hillsboro, Illinois. 
434 tons: Linden Zinc Co., 392 tons; Grasselli Chemical Co.. 
100 tons: M. & H. Zinc Co., La Salle, Illinois. 324 tons; and 
I n lin Separating Works, Galena. Illinois. 85 tons. The total 
was 268 cars, which is about 100 cars less than usually report- 
ed prior to April, 1913. 

The northern half ot the field appeared flat most of the 

•n h. as far as opt rations were concerned, while the opposite 

was true or all the districts in the southern half of the field. 



YERINGTON, NEVADA 

Hi t istonk Mine. — Pinegrove Development. — The Roi klaso 
Mine. Orehodies. Mills, and PROPOSED Treatment ot iiik 
Ore. 

It is locally reported that the Mason Valley Copper Co. has 
a bond on the Bluestone mine. Shipments are being made to 
the smelter at Thompson, and the sale of this property has 
aroused a great deal of interest in the district. It is one of 
the oldest mines in the copper belt, and considerably more 
than 1,000,000 tons of ore is said to be blocked out. The ore 
is a chalcopyrite, disseminated through altered limestone. 

The Pinegrove Nevada Gold Mining Co. has been operating 
its 10-stamp mill all winter. Reopening of the old Wilson 
mine by this Company has stimulated prospecting in the dis- 
trict, and several discoveries of gold ore have been reported. 

The Pittsburg-Dolores Mining Co. is operating the Rockland 
mine, three miles south of Pinegrove. This property was dis- 
covered in 1868 and has been operated at various periods since. 
The orebodies are in a fissure, formed by the intrusion of a 
wide rhyolite dike into granodiorite. Wherever the best ore- 
bodies are found today, the fissure is wide. The mine is 
opened by a series of adits and a depth of about 1000 ft. has 
been obtained. At the present time new chutes are being 
constructed, and some of the old drifts are being cleaned out 
to be ready for production by the time the new mill is com- 
pleted. The first mill on the pwperty was built about 1870 
in Keene canon, one mile north of the mine. It was de- 
stroyed by fire within a few months. After a number of 
years, during which time the high-grade ore found was hauled 
to the Wilson mill at Pinegrove. the property came into the 
hands of Gov. Blasdell of Nevada. He built a 10-stamp mill 
at the mine, and used the Washoe process in treating the 
tailing. Most of the development work in the mine was done 
during his ownership, and until the mill burned. After 
Blasdell's death the property was idle for some years. In 
1H02 it was acquired by the Nevada Chief Mining Co., which 
built a 5-stamp mill and concentrated the tailing from the 
plates. Later, a 15-ton cyanide plant was installed, but was 
not very successful, as it was found impossible to leach the 
tailing if it contained any slime. 

The ore has always been difficult to treat. Ground to 100 
mesh only about 20 r ; of the precious metals can be caught on 
plates, and the best ore, which is a hard quartz containing 
pyrite, contains practically no free gold. Much of this was 
left in the mine and used as fill in the old stopes. In 1907 a 
dry-crushing mill of 75 ton daily capacity was erected. 14 by 



II I'M I 



MIMV, AND S< II Mil H PH 






finer hum 10 

mi-Ill plan 

I n>ullstil<> al I Ik 
I* lo br grOI I, 111 It tubr null, illi.l III. 

show n 
that an extraction ol d wlthonl serious 

difficulty, li -ii, ti i . t - . 
Um mine should renture, 

'■i IDAl I / \l: I. i// A h 

Sill mil \ IN Tlrn . VM.Aiiilii.i.ii mi Cogs ONAUSTH 

— K»m> Hum in jAuaoa Sm i Down. Mixiifa Mn 

Kllllli l'\-ll«i. Ml si LOOTED. 

An American mining man of Teplo, Arthur F. Flynt, who 
recent]) arrived in San Francisco, Btates that mining opera- 
tions an al a Btandatlll in thai territory. Mr. Flynt bad just 
eompli anlde plain al the Purlelma mine, a 

propvrt) thai In 1 had been developing for several years, and 




HOSTOTIPA^l'ir.l.-i DISTRICT 01 JALISCO 

had been milling at r 1 i * • Zopilote mine, another Tepic prop- 
erty that he had under lease from a German company. He 
remained in hiding at one of his mines following the Amer- 
ican occupation of Vera Cruz, and up to a short time before 
the capture of the City ol Tepic by the Constitutionalists, go- 
ing into the Tepic capital after the rebels entered there. 
While in the capital he talked with General Obregon. the 
Constitutionalist commander, who told him that the friend- 
ship of his followers for the Americans would continue as 
long as no move toward intervention was made, and that the 
lives and property of Americans would lie protected. II che 
Americans made any further advance into Mexico they would 
have the Constitutionalists to fight, the General said. Mr. 
Flynt reports that after Vera Cruz was taken, the Federal 
forces in Tepic confiscated all the property of the Grant Bros. 
Construction Co., the American concern that built the South- 
ern Pacific railroad through Sonora, Sinaloa, and Tepic as 
far as the Tepic capital. Supplies of the Waters Pierce Oil 
Co. also were confiscated. 



rontrolli 

i Mini: p. 

Il(< ami pr.ii 

i -in- oiilj i.iiih i mining n 

soil-American outbreak following the Vera 

the El Favoi , amp in the Hoi lotlpaqul 

■ JallaCO, C, II. IN null. I) an An B, ami i. I 

Bngllsbini - Hoadlej i 

"di-nl .11 Kl Kami', ami Wllllal 

nam Both fori and 

ai.i Hoadley's bead and face were horribly mutlli 

secure several gold-filled teeth fr his mouth. Waltei Neal, 

manager al El Favor, who «a f . Blabbed in the back, i 
Urely recovered from bis Injuries since reaching the I 
States and no* is acting as conanltlng engineer foi the 

MaKeever li raera ol BH Favor, who also im . 

in .Molilalia and Arizona. The CuaadoH sll\. 

mine in the Hostotlpaqulllo district of Jalisco has been 

confiscated by Mexicans, The mine is the property 
nf the Consolidated Mining Co. of New Jork and Lo \i 
II is stated that the Mexicans held the mine until the dyna- 
mlte and other supplies found there were exhausted, and that 
high-grade ore to the value of P25.000 was taken om and 
disposed "I i" Mexican ore buyers. The Federal troops in the 
district either were powerless to drive off the looters or 
made no effort lo do so. 

Ill I. A H I YO, RHODESIA 
Work ov the Rhodesian Geolooicai Suuvev. Qeolout <m 

GaTOOMA Ills-run r.— Cl sum MILLS SUOGKSTED.— ASBESTOS 

ami Chboiie Iron Ore Deposits. — Tin. New Mikes. 

From an economic point of view, the report of the director 
of the Rhodesian Geological Survey for the year 1913 is cer- 
tain^ the most important that has yet been issued. This 
deals with operations for the third complete year since estab- 
lishment of the department, during which period work was 
concentrated on the goldlields surrounding Gatooma in Ma- 
shoualand, which is the centre of what is probably the most 
extensive and valuable mineralized area in the territory. 

About four or five miles from Gatooma is the Cam & Motor 
properly, which is one of the three leading mines of Rhodesia. 
Close to ihe Cam & Motor are the Eileen Allanah and Eiffel 
Blue mines. The Gatooma district as a whole may be sub- 
divided into other subsidiary areas, such as the Goldeu Val- 
ley and Shagari. each of which includes numbers of prop- 
erties of some importance, the majority of them being worked 
by syndicates or tributing parlies. In the Shagari district 
the gold-bearing belt consists of greenstones and felsites. 
Judging from the location of the successful mines, the green- 
stones appear to be the more favorable country rock, with 
the qualification that it is not the areas of pure greenstone, 
but areas of greenstone containing small bodies of felsite 
that are most productive. The larger bodies of felsite also 
contain numerous gold-quartz veins; but a number appear 
to be of small size, though rich in gold down to water-level. 
They have not been opened to any appreciable depth below 
this. Although large orebodies, requiring a considerable 
amount of capital for development and treatment will no 
doubt be discovered from time to time, the number of rich 
veins of the smaller size makes the district a favorite with 
Hie individual worker and small syndicate. 

In his report, the director of the Survey. H. B. Maufe. makes 
a valuable suggestion in regard to the Shagari area, as fol- 



MINING AND SCIENTIFIC PRESS 



July 11. W14 



lows- "The cost of a plant for treatment, and of its trans- 
ind erection, and frequently the lack of sufficient water 
at hand, are factors which retard the working of these veins. 
The Shagari district is one of those which should receive 
I ration in the event of a decision to erect custom mills, 
as recently suggested by the president of the British South 
Alii, a Co." Although the subject of custom mills is per- 
haps a little outside the province of a geological survey, this 
in no way detracts from the importance of Mr. Maufe's rec- 
ommendation that the Shagari area should justify the erec- 
tion of government-owned mills. Hitherto, custom mills, such 
as are provided by certain Australian governments, have 
been given but scanty attention by Rhodesian and South 
Urban authorities. A little money has been spent in this 
direction in Natal and Zululand. but generally speaking the 
South African governments have done practically nothing 
to directly help mining enterprises among the smaller capi- 
talists. If the recommendation of the director of the Rhodes- 
ian survey is heeded, it may mark the commencement of a 
new epoch in mining in South Africa. 

In other ways, the latest report of the Survey should be 
of considerable value to prospectors, as it contains a num- 
ber of facts of interest relating to the distribution of gold 
veins in the Golden Valley and Shagari districts, and the 
character and mode of occurrence of different types of veins. 
Not much can as yet be said regarding the distribution of 
the gold within the veins themselves, as little really valu- 
able information is as yet available. In the report, Mr. Zeally 
contributes some valuable observations on ancient workings 
in granite country east of Gatooma. It is of particular in- 
terest to notice that a conclusion announced in the previous 
year's report, namely, the close association of the gold ores 
with felsite. finds many examples In the areas considered in 
the present document, and is strikingly illustrated in the 
case of the Golden Valley district. 

Discoveries of extensive deposits of asbestos and chrome 
iron ore in the Victoria district of Mashonaland are attract- 
ing a great deal of attention at present, both in Rhodesia 
and .loltannesburg. A company with a capital of £125,000 
has been formed to acquire and work the occurrences. A. H. 
Ackermann. Clement Dixon. Colin Campbell, and other mining 
engineers have reported favorably on the properties. The 
asbestos venture is known as the King's Asbestos, and in 
the course of his report Mr. Ackermann. the resident min- 
ing engineer of the British South Africa Co.. stated: "I am 
much impressed with the possibilities of this asbestos prop- 
erty, and although little work has been undertaken to prove 
the extent of the area, indications at present are certainly 
most encouraging, and lead me to venture the opinion that 
it will be the means of opening a new and extensive industry 
in Rhodesia." The most favorable features in connection 
with this property are the high quality of the asbestos in 
the rocks as so far proved, the finding of profitable asbestos 
in every working place in the area referred to and outside, 
the facilities for a cheap system of bench mining, the proxim- 
ity ol a continuous supply of water and cheap labor, and 
the past satisfactory results of the owner's operation, which 
were undertaken under most adverse conditions. Of the 
chrome iron deposits. Mr. Ackermann says that it is not pos- 
sible to gauge the extent of the deposits on account of no 
development having so far been undertaken. He suggests 
that immediate steps should be taken for the opening of 
these deposits, and said: "A few months' serious development 
work on these deposits should open up sufficient profitable 
chrome to justify the extension of the railway from Victoria 
to the bottom of the hill." It is understood that the dis- 
coverer of these deposits is Mr. Turner, who is well known 
on the Rand. Chrome ore production of Rhodesia in 1913 
was :,<;.:'.< I tons. Reports of a discovery of tantalite in the 
Victoria district are also current, and it may be that this 
area, which has so far been considered to be of agricultural 



value only, will yet develop into an important mineral-pro- 
ducing region. 

The large new producing gold mines, such as the Shamva 
and Cam & Motor, have already had a favorable influence, 
and the gold output of 64,894 oz. in March easily beat all 
previous records. From now on a steadily increasing monthly 
return may be anticipated. The Shamva is understood to 
have made a profit of about £11,000 in April, and the Cam & 
Motor, desplfe treatment troubles, is reported to be doing 
well, treating 11,120 tons In May for gold worth (65,000. The 
Bell is also said to be securing good results. As these mines 
get into full working order, better yields will be forthcoming. 
The Antelope's production so far has been disappointing. 
The Falcon is expected to commence crushing within the 
next three or four months. As to the other mines, it may- 
be noted that sinking the new vertical shaft has been tem- 
porarily suspended at the Globe & Phoenix, to allow of the 
erection of a new head-frame and hoist plant. The Eldorado 
Banket mine is reported to have opened some rich shoots 
of ore recently. This property's output in May was $44,000 
from 4954 tons, with a profit of $20,000. ' 



JOHANNESBURG, TRANSVAAL 
Mineral Outpot op Sooth Africa. — Transvaal ix April.— 

EaSI Rami PROPRIETARY PROPERTY. — LITIGATION. 

Exclusive of diamonds, the total value of the mineral out- 
put of the Union of South Africa for April was £3.193.255. 
Gold mining in the Transvaal, although slowly improving, has 
not fully emerged from under the cloud of uncertainty caused 
by labor troubles, the output of gold in April only totaling 
687,988 oz. valued at £2,922,388, compared with 792,082 oz. 
valued at £3,364,650 in May. twelve mouths ago before labor 
troubles started. In April, the Transvaal had 92 producing 
mines with 9803 stamps and 293 tube-mills at work, yieldiug 
687,816 fine ounces of gold. Considerable attention is at 
present devoted locally to the figures of the gold output of the 
Rand on account of the Tact that since the labor troubles of 
July, they have until the last two months consistently shown 
a decline, in place of a steady increase as before. This de- 
cline has in many quarters created the impression that the 
Rand has reached its zenith as a gold producer, and the 
previous confident tone has given way to pessimism, so much 
so. that even the Chamber of Mines seems to have been affected 
thereby, as shown in the recent statement submitted to the 
Economic Commission. As far as possible, the Mines Depart- 
ment has attempted to minimize the bad effects produced by 
this statement: but the fact remains that some time must 
elapse even if the gold output of the Rand again assumes the 
steady progressive increase so characteristic of the industry 
prior to last July. 

The last quarterly report of the East Rand Proprietary 
Mines shows that the shrinkage of profits indicated at the 
recent annual meeting has already begun and that the amount 
of development accomplished is still on the wrong side. The 

Company has now about E250.I standing to the credit of the 

development suspense account, a good deal of which will have 
to be spent before the ore reserves of the concern are placed 
in a satisfactory position. The difficulty still continues of 
finding sufficient faces where the expenditure on development 
seems to be justified, a difficulty likely to be experienced until 
the area beyond the water dike is drained. When it is stated 
that a large quantity of water, estimated to flow at least at 
the rate of 3,000,000 gal. per day. has to be overcome, much 
of which has to be pumped from a depth of 4000 ft., the diffi- 
culties of the position will be easily recognized. Taken on the 
whole, therefore, it seems probable that at the East Rand 
Proprietary the position will probably grow much worse be- 
fore an improvement can be expected, so that the outlook is 
anything but encouraging. 



It I'M t 



MIMV. I Mil |i l'KI ss 






■ <u 41 Trai< Ltd 

-•riii'-i 

(nun Hi.- lull, ilir Ult.i r.uiiii. 

.ii the I iiim- aKr.-.-.l .m .111.! 

U ..ii.' urn. 
nod iik.'i> ihm nnral almluu •-»».■» mold !»• beard, bm 
groups affected compromised »ith the pewtf nun 
was t h.it |g which k 
■ • illon from tor pointing 

il ih.- Main - lying mi the Matron- 

ly, between Bokabura and Benonl Thli 
ade uodei lent, but n transpired 

from the evidence host little eras known ••! the character "i 
tin itit-f M-ri.it so long ago The iudgmenl was la the 
tmt a few Saatlaj boalden al conglomerate bad been 
'■i. Qaul (..r the Indication ol th* outcrop .n the 
Mum Reef, and he therefore lost his claim tor compensation 
amount <■• di Qnastion arose dnr 

lug the trial as to what really constituted an outcrop, no less 
th. hi «i\ expert mining engineers and consulting geologists 
fallloi to satiaf) tti.' Judge In this respect The trouble arose 
owing to the conglomerate bed occurring as a sub-outcrop, and 
i.'ft for the judge to define an outcrop as the place at 

Which a lied actually outcropped at the surface.' 



VELBOVRSE, M 8TRALIA 

-i »M. MlMKM. IHDSX, -MOLTBDIKITl — IW B T tTU W "I 

Mimm. Km.im.u-- Kim rail w WOBK IN Aistrm.ia. 

The Queensland Government has Issued a 'Queensland Min- 
eral index and Guide.' which constitutes the lust attempt 
j the mines department In any "t the states to adver- 
tise the mineral resources of that state, it cannot tx 

that the production is quite up to the beet standard of 
Canadian and American wort in the Bame line, but it is not 
far behind, and In BCCUraC] and thoroughness it 
nothing whatever i" be desired. Australia has always 
been t'»i anxious t.> keep her good things to herself to do 
very much advertising; but this publication is only one of 
man] si-ns thai a more liberal policy Is being entered upon. 
There is. however, much to be said for the hint suggested 
by the 4usfrafian Jtfininp Standard, that it Is not very much 
ns. advertising the mineral resources of any state till the 
laws have been sufficiently liberalized to offer some Induce 
in. in to foreigu capitalists to put their money into local 
mining properties, Without sum. .thing like real secuiit] 
hi tenure they are not likely to take the risk of any great 
investment of capital. 

It is amusing to note how suddenly molybdenite has be- 
come prevalent throughout the whole of Australia. Queens- 
land has mines which it claims to he the best in Australia: 
New South Wales makes similar claims, with perhaps less 
warrant; Victoria is working some deposits on which the 
government geologist has just reported: Western Australia 
ami South Australia both rei>ort discoveries which, as a 
matter ol course, are expected to prove valuable; and it is 
understood that Tasmania also has its discovery of the min- 
eral. There is no need to point out to readers ol the Presj 
that all these discoveries are i losi 1} connected with the extra- 
ordinary increase in the market va'ue of the metal. It is not. 
unnatural that when the metal is wanted it should be looked 
for: but it is surprising to learn of so wide a distribution of 
so supposedly rare a mineral. In some cases of course; the 
presence of the mineral was known previously, and the market 
rise has led to the exploitation of deposits hitherto neglected: 
but it would not be very surprising to learn that one or two 
of the discoveries are not quite so 'molybdenous' (if such a 
word may be coined I as is represented. 



annual meeting ..i the Aii-n.iii.in In 
iCogini i in Maibonrns and was i 

•■ffslr .,( in, 

ii. 

arrangements were hi neans ■ellafactory, and Uu 

■run »"» niiini. i.nti! 

own much | ,. I,,, i ,, , 

tainl] " I" «luil It had I" off. r 

abl) He in.. i. Ntlng Held in in. 

ra in us o and the greatest 

. . air.- ..I mining Industi r. Yet B .i got 

iii.ii.ii. Dayleaford, or tram In toad ..t Uu 

visit »us paid in Walballa, i famous owing to tbi 

"t ih.- Long I'u i mid Long T I Extended, but no* 

worked out The onlj other plans honored bj .i call was 
vYouthaggi; Mi. icons ..' the government's expa snl In 



\A*V ,BW * lfl 'yJ | 








•noigo / / -X 


\ 1 1 -<C \ f^-^X / . \ 

/><^S-s=fe-sV'- — 3L \^ 

/ ^^-— -^^_s» ,N^TCn9twwc*-— ' ^\ 






/ / ^\ I \ 




AX ^ — 




J 1; X 




pPR^Zflt? 




\)Uff^. 




1 v~"~ 


^£S W jr Jf 
\ r I J 

N. s^ J^^ / Southern 


Oc«MTi 



PART ii! I III SI VI I "I I II mill V. 

coal mining, an experiment for which a strong effort is being 
made to have it regarded as a success, but which would in 
point of lad he regarded as a failure if it were being worked 
by a public company instead of by the state. [The mine pro- 
line, > about 2000 tons ol real per day.— Editor.] Altogether ii 
cannot be said that the Australasian Institute of Mining 
Engineers is on the up-grade. 

A leading article in the Australian Mining Standard on 
Kbit ric Work in Australia' has attracted considerable al 
i.ntion. and. strangely. Inn significantly enough, baa been 
gi nerally endorsed by some of the large electrical firms. The 
article begins with a statement that "the work ol the Victoria i 
and Australian cities requires to be put upon an entirely new 
basis." and proceeds to ask. "why Incompetent workmen 
should ever have obtained a fooling there. Men are noi per 
mitted to touch gas pipes or water pipes withoui posse Sing 
a license. Why, then, should absolutely unlicensed men be 
allowed to meddle with the Important work of effecting 
electrical installations in either dwelling houses or business 
houses? It is believed, and the belief is probably not very 
far from the truth, that there are more incompetent men 
engaged on this work than in any other part of the building 
trade: and the amazing thing is that the insurance companies 
have not before this taken a hand in the matter, and insisted 
on the electrical work being done to their satisfaction be- 
fore they will consent to insure properties in which the 
electricity has been installed." 



74 



MINING AND SCIENTIFIC PRESS 



July 11. i:iH 




ARIZONA 

Cold, stlv r, copper, lead, and zinc were mined in Arizona 
in 1913 to the value of 170,876,027, according to Victor C. 
Heikes of the r. S. Geological Survey, showing an increasi . 
as compared with 1912, ut (8,824,243. The value of the gold 
production in 1913 was $4,023,911: silver. (2,384,847; copper, 
$G3,228,127; lead. (710,370, and zinc. (527,972. There were 4::^ 
mines producing these metals in the state in 1913. as against 
II", in 1:0:;. and the total quantity of ore sold and treated 
was 7,931.862 short tons, an increase of 1. 1191.780 tons. 

Cot alas Cm mv 

Sulphide ore has been opened in limestone in the C:tluniet 

U Arizona company's Cole area at Bisliee. The Copper 

Queen test mill lor the low-grade ores of the Sacramento hill 
and Czar shaft upper levels is nearly completed. Churn- 
drilling is still under way in this area. The Shattuck mine 

is developing well, and ore shipments amount to 400 tons 

per day. The Mascot Copper Co.. operating at Dos Cabezas, 

is to construe) a line from the South Pacific near Willcox 
and connect with the Maricopa Copper Co.'s line at Dos Ca- 
bezas. a distance of 18 miles A company called the Mascot 
4: Western Railroad Co. has been incorporated with a capital of 
-nun shares at $10u eacn. 

Mohave Cot s i v 

The Grand Gulch mining district is described by .lames M. 
Hill in Bulletin 580-D of the D. S. Geological Survey. He 
examined the mines there in November 1913. The district 
is most easily reached from Moapa, Nevada, on the main line 
of the San Pedro. I.os Angeles & Salt Lake railroad, and" 28 
miles northwest of St. Thomas. Nevada, the supply point for 




NW. 

o' — ^ 


'■•: n titmfl 

F r;ii.„ s 


SE. 


Sandstone 


^V^Sondsio-ie 


CalcaretKis.6^ 
sandstone/ 

.... Z Q 


Filling 


VCa'careou* 
\ ssnostofe 


esiorJJ/ 


Fillinj 


Limesti 




ShaO to 
SOO-footte*ti 





PLAN. 60-FOOT LEVEl 



PLAN AND ELEVATI09 OF THE OEAND GULCH MINE. 

part of southeastern Nevada and northern Arizona. The 
climate is typical desert weather, and there is a fair quantity 
ot limber available. The Grand Gulch mine is 54 miles ease 
of St. Thomas. It has been developed by a shaft 500 ft. 
deep, and levels have been driven at 100. 200. 300. and 400 ft 
Owing to the peculiar shape of the orebody the levels are 
generally of circular plan. At 200 ft. the ore zone is about 
300 ft. diameter. In the upper portion of the mine the ore 
is in sandstone, in the lower portion in limestone. The ore 
consists largely of malachite, azurite. and brochantite. with 
irregular masses of chalcocite scattered through it. The ore 
does not extend below a depth of about 250 ft., there being 
no copper minerals at 300 or 400 ft. The copper was de- 
posited in the upper workings by generally downward-mov- 
ing waters. Fifty men were employed in the fall of 1913. The 



Bronze L. toinc is 3 miles southwest of the Grand Gulch, and 
has been opened by a 200-ft. incline shall, now caved to about 
The ore minerals are largely sulphides, with smaller 
s of azurite and malachite. The Copper King mine 
is 10 miles east of the Grand Gulch mine, near ihe Colorado 
rivi r. Evuy two months a carload of 23 to 265j copper and 
$'■', to $4 silver ore is shipped by Bishop Whitehead. 

Yavapai County 
ial Correspondence.) — There is a revival of mining in 
the Thumb Butte district, and miners are busy at many 

claims. The Little Jessie mine, at Chaparal, is producing 

ore again, and gold ore is being sent to the Hayden smelter. 
Phoenix. June 28. 

CALIFOMNIA 

Amador COUNTY 
A retaining dam is being erected by the Kennedy company 
to store the tailing delivered on Bright ranch by the wheels 

described in this journal of May 9, 1914. The Bunker Hill 

company has declared its monthly dividend of $5000, making 

C I for the current year, and $732.(100 to date. More 

mini is are being employed at the Plymouth, preparing the 
mine for supplying ore to the new mill, which is well under 
way. 

Ei.DoitAMu County 
A 12-drill 2-stage air-compressor and other equipment has 
• ii installed at the Oro Fino mines, Shingle Springs, con- 
trolled by the Tredwood Syndicate, Limited, of London. De- 
velopment of the lower levels is now under way. C. H. James 

is resident manager. Seven mines, in the Volcanoville dis- 

trict, near Georgetown, known as the Ruby Consolidated Mines, 
and including the Aphrodite. Pluto, Proserpine Wedge, Garfield, 
Garfield Extension, and Little Gem have been bonded to a cor- 
poration headed by W. I. Smith from W. C. Green. The 

fiftieth anniversary of the Bullion Bend hold-up, in which the 
Washoe stage was robbed of gold worth $C0,000, was observed 
al Placervllle on July 2. The men were captured and several 
killed, but the metal was never recovered. 

Mariposa County 
(Special Correspondence. I — John McAUester and associates 
have taken a working bond on the Sweetwater group of claims, 
which has a 10-stamp mill and other equipment. Her- 
man Schlagerter of San Francisco has been visiting his 
brother Charles A. Schlagerter at Mariposa, and has examined! 
the Hite mine on the south fork of the Merced river, which is 
idle for want of capital to put the necessary equipment on 

ihe property. There has been nobody from the State Mining 

Bureau in this field since 189R, until F. L. Lowell came here 
recently. He has some difficulty in properly finding un- 
patented claims of recent location. It is suggested that county 
supervisors could pay the salary of a Bureau officer, and have 
the mining areas thoroughly examined, as the appropriation of 

the Bureau is limited for this work. Judge J. J. Traboceo of 

Mariposa, in the case of Sidney r. Pierce on injunction proceed- 
ings has increased Sidney's bonds from $1000 to $4500. This: 
case involves the title of the Buena Vista copper mines in the 
Green Mountain district, in which Sidney claims the property 
by prior location, and has sued Pierce to recover the prop- 
erty. Pierce located the property July 9. 1912, and has been 
developing it, and mined and shipped $35,000 worth of copper 
ore. The Sunnyside mine at Sherlock, owned by Mrs. Emma. 



11. l"ll 



MINING W . i ii |, ph 



nn. I a 1001 

Ing h»» bw 
.ill with i Hood) 

II put in 181 

HornlUN has bun sampled bj T C I 

The 

•-.milled In I ...II ... 

atlng mi mineral Ian. I » bleb 

nut] Ii quite 

nd ihoald laia mini Ii 

troubled bj men who bin in. .1 ■ homwtMd on the 

ground from which the m i Ita water. 

IIHNUl. Jull' 

I'i i >i *- r... mi 
on hu boon opined In thi trade nun.- sen Oreen 
rllli •■•• ih.- owner, D Helntyre Diving suite in being 
■ end v B ki lecl gravel In the 
mirili r.irk ..l the Feather river, near Betden. Thej are work- 
ing for abonl 30 mlnutea ai s ii in 10 to i". ft of water. 

Blutelng and other work is in full swum on Kelson creek, and 
thin will be plenty ol water for another month. 

Sll 181 V Oil \ IV 

The Mountain Copper Co. has arranged to Install al Kes- 
wick, "."lii'.. 60-hp., 76-hp., ami inn hp. Induction motors which 
have been purchased from the General Electric Company. 
Siskiyou County 

Owner* ol the Oraal Northern mine, an old producer, are 
mining or.' ror ■ teal run. If satisfactory, the old MeCook 
mill win be moved to the property. 

Tkimtv County 
ipondence.)— Everybody lias bad a good 
season's bydraullcklng. Lorenz Bros, have just finished a 
satisfaciory run on the old Junkan's ranch, or lower Weaver 
Creek mine. 

Weavervill.-. June :'.". 

Tioii m\k County 

i Special Correspondence. I — The collar of the App mine 
shaft is being repaired, and other work is going on with a 
view to resuming mining. It is understood that a portion 
of the mill will be put in working order at once for mining 

the ore on surface. The Burnham mine, on Knights crei 

recently bonded to M. Johnson, is yielding high-grade ore. 
A 480-ft. adit is being driven, through which two veins will 

be worked. Sinking and driving is in progress at the 

Franco Contention mine. In the Jupiter district with 30 men. 
The prospects are most encouraging, and additional machin- 
ery, including a large hois', will be installed in the near 

future. Ai tin Ditch mine, the 1650 and 1809-ft. drifts are 

being extended toward the rich shoot that made a record for 
the property nearer surface a few years ago. The mill is 

operating continuously with good results. The Leap Year 

gravel mine near Jamestown, has been bonded to George 
Tatton by Joseph Hosklns, and an effort will be made to open 
the auriferous deposits, which are believed to be but a short 

distance from the point reached by the former operators. 

Thirty-five stamps of the milling plant of the Shawniut mine 
are in operation. The ore is conveyed from the hoist in the 
mine to the mill in electrically operated cars, an improvement 
which was only recently finished. A portion of the force em- 
ployed is still engaged in making repairs and improvements 

that will add greatly to the efficiency of the plant. It is 

reported that negotiations are under way for the consolida- 
tion of the Mack and Longfellow mines under new manage- 
ment. The Mt. Zion mine, in the Groveland district, is 

being reopened by Ernest Caplinger. The shaft has been 
cleaned and repaired to the water level and some develop- 
ment work will be started in the upper workings soon. The 

Company operating the River Gravel mine at Jacksonville 



.ill be in.. i 

quantlt) «i travel ihl 

< olob w" 

La Plata Coi ■> <\ 
ii" district Ii 

which ■ , lh. |i ft R Q H,,. 

iii miles b) iu district I 

a-leve! i hi on »hli 

'nil- gold, Silver, and COppc I Son,.' hi: 

■hipped '" Durangc laat September, a fair a ml "i prw 

pecting is now being done on the various clali 

Ti mi; i'"i mi i iini-ri i i in i k i 

Estimates ..i the June output ol the district, mad July 

ih. following totals 

I'll'"'- Tonnage. Av val. i; 

Golden Cycle 11,000 120.00 $ 880,1 

Portland, Colorado City... :>.." 20.00 190, 

Portland, Cripple creek... is.mhi lmm 16,180 

Smelters i.oeo :.:.."" 

Stra s Independence. . . 1 1,828 

Colburn-AJax i.i 10 i 00 

Wild Horse 1,200 3.24 8,888 

Neville Ki, , Coinage ;"" 8.00 8,600 

Gaylord-Dante 1,600 2.30 8,460 

Kavanaugh-Jo Dandy 1,860 1.40 J..",li" 

Isabella mines ::," 2.00 1,500 

Total 85.323 $1,151,985 

The Vindicator company and lessees shipped aboul 3500. 

ions, worth $1(15.000. The United Gold Mines, worked It i 

I. ase. produced 100 tons of ore. From the Abe Lincoln 450 
tons of $21 or.- was mined. Lessees at the Dexter extracted 

665 ions, worth $12,0011. The Golden Cycle was the only 

company to pay a dividend in June, the amount lain:.- si:,. 

July dividend-; are estimated at $260,000. 

IDAHO 

Bonner Cm mt 
In a raise between No. 4 and 1 levels in the Idaho-Conti- 
nental mine, 26 miles from Porthlll, there is 6 ft. of high- 
grade and 6 ft. of mil! ore. The raise is up 330 ft., and will 
be finished In 30 days.. The 200-ton daily capacity concen- 
trator has been completed, also the hydro-electric station on 
Boundary creek, midway between Porthill and the mine, to- 
gether with the transmission line, and the entire equipment 
is ready for service at any time. The mill will stari about 
July 15. and by August 1 crude ore and concentrate will be 
shipped. To facilitate handling this product, an aerial tram- 
way, 1500 ft. long, will be constructed over the Kootenai 
river by the Riblett Tramway Co. Ore will be hauled to 
the river by 'caterpillar' engines and Troy 15-ton trailers. 

Costeb County 
The genesis of the garnetiferous copper deposits near Mac- 
kay are described in the June issue of Economic Geology by 
Joseph B. Umpleby. The district lies at an elevation of 
from 588S to 9600 ft. above sea-level. Rock formations are 
Carboniferous limestone, intruded by late Cretaceous granite 
porphyry, and trachyte porphyry. The orebodies occur within 
the main igneous mass, well back from its border. Most 
of the production has come from shoots of ore situated from 
1"') to S00 ft. out in granite porphyry, and two carloads was 
obtained from an orebody 1201 ft. back from the main igne- ■ 
ous contact. No deposits of proved importance occur in the 
main limestone area. In places the orebodies are closely 
associated with large blocks of limestone included in the 



76 



MINING AND SCIENTIFIC PRESS 



July 11. 1!U4 



igneous rock. Garnet rock accompanies all the Important 
ore-shoots, and in most of the primary ore this mineral is 
the dominant constituent. The orebodies vary greatly in size, 
and even more in shape. Three principal groups are recog- 




l HAP \\li SECTION or A SM.U.I AREA si iikoi \nl\i, lit I 
l Mi'lia COPPEB ( o.'s PRINCIPAL DEPOSITS. 

nized, one in the Copper Bullion and two above the Alberta 
adit. The primary ores consist o! an intimate intergrowth 
ol garnet and chalcopyrlte, and the latter contains 5 to t;< , 
copper, with a little gold and silver. 

SllONHOXF. C'dl'NTV 

A mortgage totaling $20,152 and covering the claims of "7 
creditors of the Idora Hill Mining Co. has been placed on 
record at Wallace. The deed includes several mining claims 
and all tools, machinery, mills, and other equipment. 

Annual meetings of the Moon Creek Mining Co., Aurora- 
Sampson Mining Co., Valentine Mining Co.. and Four Tim- 
bers Mining Co. have been held, and the various properties 

owned were discussed. A meeting of the Gertie Mining 

Co. was held at Spokane on June 2o. when the capital was 
increased, and it was decided soon to begin driving a lower 
adit 3700 ft. long. The portal will be about 1000 ft. from 
the schoolhouse at Burke. A vertical depth of 1400 ft. will 
be obtained by the adit, which will cost from $50,000 to 
$65,000. A compressor plant is to be installed. A. A. Booth 
Will he in charge of the work. The property is a promising 

one. The Hercules Mining Co. will place in operation in 

its mines two 8-ton, :;o-in. gage. 500-volt electric mining loco- 
motives recently ordered from the General Electric Co.: and 
the Snowstorm Mining Co. at Larsen will install a 275-hp. 

induction motor and starting panel. After an idleness of 

nearly two years, the result of litigation with the Bunker 
Hill & Sullivan company, the Caledonia mine, near Kellogg. 
has resumed operations. One of the stipulations in the com- 
promise agreement that ended the controversy between the 
two companies was thai a unit of the Bunker Hill & Sulli- 
van mill should be set aside for the treatment of Caledonia 
ores. The plant has been under repair for several months 
and was given a trial run recently that proved satisfactory. 
The mill was started running one shift daily last week and 
is now treating about 10(1 tons per day. During the shut- 
down, connection by means of a raise was provided between 
the Caledonia workings and the long lower adit of the 
Bunker Hill & Sullivan, permitting the product of the mine 
to be handled through the latter at much less expense than 
under the former system of operating, and it is estimated 
that the Company now will average $40 to $45 per ton net 
on its ore. There is a large tonnage in sight in the mine, 
and engineers regard it as among the long-lived producers 
of the Coeur d'Alene lead-silver district. Charles McKiunis. 
one of the best known mining men in the Coeur d'Alene. 
aeral manager of the Company. 

XEVADA 

Esmeralda C'oimv 

The estimated production of the Goldfield Consolidated 

mine in June is as follows: Ore treated. 25,924 tOHs: gross 

extraction, $295,000; operating expenses. $155,000; and net 

Itlon, $140.ooo. The Jumbo Extension company is 



now shipping loo tons of ore per day to the Goldfield Con- 
solidated mill. — A 20-ton cyanide plant, consisting of three 
50-ton leadiing vats, has been added to the Diamondfield 
Mining & Milling Co.'s 5-stamp mill. The ore averages $10 

per ton. More pumps have been ordered for the Atlanta 

mine. These are to be made by the Piatt Iron Works of Day- 
ton. Ohio, whose western representatives are C. C. Moore & 
Co. of San Francisco. The pumps are one Smith-Voile 6'^ by 
16-in. triplex, and one 6-in, Piatt centrifugal, electrically 
driven. The total pumping capacity installed will eventually 
be 800.000 gal. per day. 

Humboldt County 

(Special Correspondence.) — On June 15, John F. Cowan of 
Salt Lake City, took his place as president of the Rochester 
Mines Co. The output of the property, from a depth of about 
alio ft., is nearly $700,000. the ore averaging between $20 and 
S- > per ton. Recent work on the deeper levels has been en- 
couraging. In the Codd lease, 4 ft. of ore was cut, 2 ft. of 
which is worth $35 per ton. At S00 ft. from the portal, the 
east vein has been cut in the main cross-cut. The first ship- 
ment from the Rock lease on the Nenzel Crown Point property 

has given returns of better than $20 per ton. About 8000 

tons of good shipping ore has been developed in the Kahaler 

lease on the Weaver claims. Four feet of $60 ore has been 

recently opened in the Buck and Charley lease in lower 

Rochester. Regular shipments are being made from the 

Nevada-Packard lessees. Kromer and Hampton. The Fed- 
eral dredge which was sunk a few weeks ago, has been re- 
paired and is again in operation. 

Rochester, June 29. 

Lanukr County 

(Special Correspondence.) — The new camp of McCoy, found 
by Joe McCoy, about 17 miles southwest from Copper canon, 
near Battle Mountain, is reported as promising. Gold ore is 
being opened, and also silver-lead ore. An engineer recently 
returned from this new find has described the geology roughly, 
as consisting of lime and porphyry lying on a granite floor, and 
intruded by dikes. 

Battle Mountain. June 29. 

Nye County 

A new double-drum Nordberg hoist is being erected at the 
Wandering Boy shaft of the Jim Butler mine. The machine 
will be driven by a 125-hp. electric motor, and has a hoisting 

speed of 800 ft. per minute. A larger yield is expected from 

the Montana-Tonopah in June. During the past week the 

mill treated 150 tons with 93'; recovery. The West End 

mill is treating 215 tons per day. At 1100 ft. in the Ex- 
tension, the Murray vein is 9 ft. wide, worth from $30 to $75 

per ton. The 1000, 1050. and 1130-ft. levels of the North 

Star are improving. 

Storey County 

All disputes on the Comstock lode have been settled, and 

development of the lower levels is now assured. A tube-mill. 

Dorr classifier, and other machinery has arrived for the Yel- 
low Jacket cyanide plant. 

M-:\\ MEXICO 
Lame gains were made in the production of gold, silver, 
copper, and zinc at mines in New Mexico in 191". according to 
figures compiled by Charles W. Henderson, of the I". S. Geo- 
logical Survey. The production of gold showed an increase of 
$97.4mi over the output of $7S4.446 in 1912: silver, an increase 
of 94,572 oz. over the production of 1.536.701 oz. in 1912: lead. 
a decrease of 1,547,654 lb. from the yield of 5.494.01S lb. in 
1912; copper, an increase of 22.277.742 lb. over the yield of 
34,030,964 lb. in 1912; and zinc, an increase of 2,956,524 lb. over 
the output of 13.5C6.637 lb. in 1912. Despite lower average 
yearly prices for copper and zinc, the total value of the out- 
put was $11,694,002. an increase for 1913 of $3,166,047. 



II I'll 



MINING VND SI II Mil K I'Kl SS 



n isnixaTOh 

I ol 'i,i- itau « hi, .mil,! 
■•l in ziu.'i. tin N ..r (in- 

lata of 

&S peer*, with mi In, I. x mi, I ,» lam '"'I' ihOWll 

i r rtporu kiii 
following anbjeeu ere ,iu 
I granite i ,,. and 

kilns, basalt quarrlea, sand ■ 

iry, metal rnlalni ud mineral staters riw 
• ml 1911 vai .1 

1111 1911 

Copper f 179.191 t 

Gold R47.677 

38,188 

SlK.T 



Total metallic $ I.1S0 II I I 1,0 
Non metallic products: 

f 8,888.870 l 1,861,768 

Coal 8.042,871 8.174.170 

Oraalti ..... 809.801 1,84 

Lima 884.888 888,933 

80,870 :i2.47s 

Mineral » ,t. rs 14,654 

Portland cemenl 8.013.78E 1.496.807 

Sun, l and gravel 819.760 

Sandstone 344.47": 301,848 

Total non metallic ...$14,216,236 $14,775,954 

Grand total fl6.336.450 J15.N30.797 

Some excellent brick is made In this state, some of which 
Is used for Btreel paving. The da] Industry is widespread in 
!>• counties. 

The output of the cold, silver, copper, and lead mines in 
Washington in 1918, according t" C N Gerry, of the U. S. 
Geological Survey, was valued at $1,053,135. compared with 
81,120,214 in 1918. The decrease was due to lower metal prices 
and a smaller production of silver and copper. The gold out- 
pul lias a value of $696,275; the production of silver decreased 
from 413,588 nz in 1912 to 331.239 or. in 1913. The copper 
production likewise decreased from 1,086.010 lb. in 1912 to 
964,081 Hi. in 1913. Lead production increased from U'7.::v7 
lb. in 1912 i" 202,487 lb. in 1918. There were 57 productive 
properties, "I which 12 were placer and 45 lode minis 

Mining and industrial companies which are now operating 
in Washington, Idaho, and British Columbia, and tributary 
to Spokane, paid $565,386 In dividends during the first 10 days 
hi July. Of this. $309,800 was paid by the Washington Water 
Power Co.. which supplies power to mines in the Coeur 
d'Alenes; $123,836 by the Stewart Mining Co.; $81,750 by the 

Bunker Hill & Sullivan company; and $5". by the Standard 

Silver-Lead company. 

Flint! Cm \ ii 
After an Idleness of nearly two years, mostly due to litiga- 
tion, the Quilp mine, one of the oldest developed properties in 
Republic will resume operations. The decision to reopen the 
mine was made at a meeting of the directors this week in the 
offices ol W. I. C. Wakefield of Spokane, vice-president of the 

Quilp Gold Mining Company. Attempts to consolidate the 

San Poil Mining Co. and the Republic Mines Corporation. 
which is in the hands of a receiver, are being opposed by 
creditors of the latter Company. 

STKVKNs CiiI'STV 

The raise between the United Copper lower adit ami the 
600-ft. level, a distance of 465 ft. on the incline, wis completed 
in 60 days, and was in ore all the way. Ore is to be stoped 
from the 1000 and 600-ft levels. 



I I Ml 

blpmrati from If mines m Tlntlt dai - 

■ i dividend - nual to n 

ii., i qnarterl] dividend ol lOi 

pel anan i to fjOO, n -im 

• i daj ti tin 10 "i it i- 

Si m tin Cot Ml 

k Una. in in,- general manager, W Laml ni 

Dal) Judge mine in In good Bond l 

ii to cut mi orebod) opi "'ii in thai polnl 

The rich ahoots in the Dal] rein u tins irfaet 

These shoots are In the form "t ch ye,' ami in 

50 It vide, and I.", in SO II high nn tin- 1200-fl Ii 

si.i|m- baa yielded ore foi ■ length ol 888 ft., 80 ft high and 

•tide, all null ore, Containing bad anil /.in. I .. 

im-iii t <>i iii - about 1000 ft per month. Tin- Mines Operating 

I'n. lias nipped aliimi 80,000 01, silver, being pan ..I ii,, 
clean-up. Formerly precipitate was shipped, bul i n 
finery has been Installed recently at the prapert] 

COSTA RICA 
iln- Abangarei Gold Fields Co, produced bullion worth $43,- 
386 from 6588 ions of ore in April, at a loss of $:{s.".T. Tin- 

or the Brsi i - months of 1914 was $64,706, Owing to 

ties experienced ol late In getting sufficient profitable 
run the plain, ii has been deemed advisable La 
• -.ii rations for the present and devote the attention ol i in- 
staff to underground development 

KOREA 

The Seoul Mining Co.. operating the Span Concession In 
Whang Hal province, reports the following results for June, 
1914: 

Stamps working in 

Time, days 27.83 

i Ire crushed, tons 5,960 

Total recovery $60,662 

Operating expenses _■ — 

Net earnings $35,562 

VEXICO 

Oil I II I All t A 

The American Smelting & Refining Co. has decided to re- 
sume operation at ibe Chihuahua smelter, one of the largest 
of the Company's plants in northern Mexico. The Company's 
employees have been ordered to proceed to Chihuahua and ii 
is expected that early in .Inly Ibe plant will lie In full opera- 
tion. It is also intended to blow-in the Monterey plant In 
Nui-va I. eon. and then the Velardena plant in Ooahnila. 

SONORA 

During the last week of June, nimble started anions em- 
ployees at the Mines Company of America's La Colorado mine, 
near Hermosillo. who are dissatisfied with conditions, prob- 
ably more politically than with the Company. Tin- trouble 
spread to Cananea. more in the nature of a sympathetic strike 
which started on July 2. There is no dispute with the Greene 
Cananea company. Demands of the strikers are as follows; 
An increase in wages of 25':; ; a decrease in the price of goods 
at the Company store of 25',: abolishment of the new labor 
bureau; some changes in the management of the Company 
hospital; and that wages in future be paid weekly. George 
Kingdon, superintendent at Cananea. arrived at Douglas, 
Arizona, on July 2. and consulted with .lames Douglas, the 
gi ii- ral managi r. The position was regarded as serious as 
mill and smeltermen left their work, but 2000 returned later 
on. There are 200 troops at Cananea to keep order. 



MINING AND SCIENTIFIC PRESS 



Julv 11. 1!M4 




I. D. Ikmng has gone to Butte. 

John \V. Finch was in Salt Lake City recently. 

C. P. Pi isrin sailed from Seattle for Japan on June 27. 

Wii.iii; it. Hkndebson Si ott has gone to England for a 
vacation. 

R. H. RICHARDS was at lshpeniing lasl week and has gone 
tj Houghton. 

Si m m ii 8. SMITH came down to Seattle from Nome last 
week and has gone north to Juneau. 

('. Ii. Kiinis. has been made vice-president and general 
manager for the Dome Mines Company. 

Hi nun, .ton Adams has gone to Chile. S. A., where his ad- 
dress is in care W. R. Grace & Co., Iquique, Chile. 

Morion Webbkb has gone to Idaho to make a preliminary 
examination of a placer deposit for New York clients. 

W. J. Pi miimi is in Denver, Colorado, where his address 
will lie temporarily in care of Dorr Cyanide Machinery Co.. 
Denver. 

H. L. Smyth is to be the head of the combined school of 
mines of Harvard University and Massachusetts Institute of 
Technology. 

Svnii el Newhouse, formerly a prominent mining operator 
Of I'lah. but now a resident of New York City, is in Salt 
Lake City on a visit. 

J. Vakophem, of Brussels, president of the Algunican De- 
velopment Co.. owner of the Jualin mine at Jualin. north of 
Juneau, inspected the property recently. 

W. D. B. Mutter. Jr., recently manager for the Canada Iron 
Mines. Ltd., of Trenton, Ontario, was appointed on May 1 
as manager lor the Benson Mines Co. at Benson Mines, New 
York. 

Hi mii Tschktschott, professor of ore dressing and metal- 
lie Mining Institute of St. Petersburg, is In the 
Juneau district, Alaska, studying the methods or ore treat- 

.1. A. Sim. master, general superintendent for the New 
Zinc Co., of Palmerion. Pennsylvania, is making a 
tour "i Europe visiting Bmelters and other departments of 
the zinc industry. 

formerly underground superintendent for the 
Aurora Consolidated Mines Co.. bus accepted a iiosition as 
superintendent of the Nan Aog mine, twelve miles from 
Hailey, Idaho. 

E. E. Puke, who has been superintending operations at 
the Lower Mammoth mine of the Tintic district. I'tah, dur- 
isl two years, left recently for Casper. Wyoming, 
where he will fake charge of the Pine Dome Oil Co.'s prop- 
erty. William Komi: will succeed Mr. Price. 

H. G. Vol \,; has resigned as manager for the Trethewey 
Silver-Cobalt Mine. Ltd.. and has accepted the position of con- 
sulting engineer to the Algunican Development Co. of the 
Juneau district. Alaska, and general manager for its sub- 
sidiary companies. Mr. Young will leave Cobalt about Au- 
gust 1. 



also held other Important positions and his loss will be d 
ted by bis many friends in the mining profession. 

Edward ('. Limbai ii. superintendent of the American Girl 
mines at Ogilby, California, at 1 p. m. on June 15, slipped and 
fell upon the drive-belt of one of the Hardinge mills, passing 
around the pully on the countershaft. He died two hours 
later. Mr. Limbic!) was a graduate of the Colorado School 
oi Min.s iii the class of 'Ha. and followed the profession for 
a number or years in Colorado and Montana and later in 
Loomis. Washington, where bis family are living. He was a 
man of charming personality, always well liked by his asso- 
ciates in school and in the field, honest, upright, and fair. He 
has improved the practice at the American Girl considerably 
in the short time he was there, and was a valued member of 
the profession. 

Ah i ii i B Ai siiv chief testing engineer at the Tooele smelter 
of the International S. & R. Co., was severely burned June 29 
while testing an oil burner for the assay furnaces. He was 
using a steel barrel containing fuel oil under high pressure. 
The head of the barrel blew out, covering him with oil which 
immediately took tire from a nearby flame. His injuries were 
so severe that he died a few hours later. He was a son of 
L. S. Austin, the well known metallurgist, and was himself 
well started on a promising career in metallurgy. After 
graduating Irom the Colorado School and the Michigan Col- 
lege of Mines he entered the service of the Anaconda Copper 
M. Co. in 1906, from which he was transferred to the Inter- 
national in 1911. 



Frank Rodbins, who for the past fifteen years had made 
his home in Los Angeles, died on June 21 of pneumonia, after 
a brlel illness. In the early days ef the Eureka district, Mr. 
Robbins was superintendent of the Eureka Consolidated. 
Later he was manager for mines at Valle de los Angeles in 
Honduras: MacKenzie and Mann at Greenwood. British 
Columbia: and also ot the Elkborn at Leadville. Colorado. He 




JULY 
Northern California and Southern Oregon Mining Con- 
gress, Ashland, Oregon 9-10 

AUGUST 
American Institute of Mining Engineers, Salt Lake City 10-14 

British Association, Adelaide, South Australia 8 

Canadian Mining Institute, Rocky Mountain branch, 

Banff. 
Lake Superior Mining Institute, lshpeniing. Michigan. . 

::i to Sept. 3 
SEPTEMBER 

American Chemical Society, Montreal 15-18 

American Institute of Electrical Engineers not fixed 

Colorado Scientific Society, Denver 3 

Illuminating Engineering Society. Cleveland 21-25 

OCTOBER 

American Institute of Electrical Engineers 9 

American Iron and Steel Institute 23-24 

Colorado Scientific Society, Denver 

NOVEMBER 

American Institute of Electrical Engineers 13 

Colorado Scientific Society, Denver 7 

DECEMBER 

American Institute of Electrical Engineers 11 

American Museum of Safety 11-20 

American Society of Mechanical Engineers 7-8 



The University OF Minnesota SCHOOL OF Minks, at Minnea- 
polis, begins the first semester on September 1, with 58 in- 
structors in the faculty. There are three regular courses of 
study, namely, mining engineering, mining engineering spe 
cializing in geology, and metallurgy, leading to the degree of 
engineer of mines, engineer of mines in geology, and metal- 
lurgical engineer, respectively. The bulletin of June 1914 de- 
scribes the courses and other general information. 



Ill) II 



\II\IV. II Mil l< I'KI SS 






THE MARKET PLAC! 









- t n PRAKCISCO STOCK! \mi BOHOI 






I ulUtrst 
Nntomn 





rt. i cmrnl ita 


I0U 







BanlaCnn Onomlli 


m 





10 
BTX) 


Union mi 

'KS 


89, 




tafc 


l.Nted. 


Hid 


Ask 


— 


Weal coani. pM . 


— 


H2| 


to 


1 muted. 






M 




— 


H 


8I| 


Noble Electric Hteel.... 




00c 





Pac. Port. Cement . .. 


til 


SM 


>l 


Riverside lemenl 


— 


H 





Santa Crux Cement ..... 


HI 


— 




Stand. Port. Cement ... 





18 



LUtcd. HI t 

Aaurutr.1 OH 

Natomaa ton 

In. 
General I'rtroleum Ss. 38 

Listed. Hid 

alalia niilil "ii 

Associated < Ml 

Da Pint, pill 

Giant 

Pac. tat. Borax, com 

Strrllnc "A D — 

.... at 



m \ tin nrtM k> 

I By courtesy of San Francisco Stock Exchange.) 
July 9. 

Atlanta I It 

Belcher 

Belmont , 6.67 

Con. Vlrclnla 17 

Florence -T» 

Ooidn..; .i • no .... i.« 

Uoldfleldor.. 08 

Halifax 

Jim Ballet IJDG 

Jumbo Extension . 

UacNamara 01 

Mexican 
Mldwai 

Ml/pah Extension 21 



Montana-Tonopah 

Nevada llllls 

-ar 

Ophlr 

Pittsburg silver Peak . 

Hound Mountain 

sierra Nevada 

Tonopah Extension .... 

Tonopah Merger 

Tonopah of Nevada .... 

Union 

Victor 

..i 

Yellow Jacket 



.1 -v. 

.. .32 
.26 
.. .IS 
M 
.. .37 
.. .11 
.. 2.46 

.. .10 

.10 

.. ■■<■-• 
.. -I" 



I Mil HUM t -TIM K* 

(Latest Quotations.) 
Bid. Ask 



onaut 

Brunswick Con. 
Bunker Hill 
Centra] Eureka. 



1.60 
1.90 
0.1! 



*T.50 



0.13 



Bid. 

iv 18.00 

Mountain King 

South Eureka .... 1.40 



COPPER SHAKES — BOSTON 

(By courtesy of J. C Wilson, Mills Building.) 
July 9. 



Bid Ask 

- 90) 10) 

Ariz. Commercial 4i ■> 

Butte A Superior 30] 37 

Calumet A Arizona 8t| Si 

Calumet* Hecla too 410 

Copper Range 35| 36 

East Butte '.'i 10 

Franklin t I) 

Granby 79 80 

Greene Cananea 28J 281 

Isle Royale 20| 21 

Mass Copper Ii 6 

Mohawk 11 151 



Bid 

Nevada Con I 13] 

North Butte 24] 

Old Dominion llii 

Osceola 77| 

llulncy 57 

shannon 6 

Superior & Boston Ii 

Tamarack :i 

IT s. Smelting, com 33] 

Utah Con 10 

Verde 82 

Winona 

Wolverine 88) 



NEW YORK STOCK EXCHANGE! 

(By courtesy of J. C. Wilson, Mills Building.) 
July 9. 



Bid Ask 

Amalgamated 8 70) 70] 

Anaconda 31] 

A. S. «. R., com 05) 66 

Calif. Pet., com 19j 20 

Chlno 40] 40j 

Guggenheim Ex 64] 55] 

Inspiration 181 18j 

Mexican Pet., com fill 62 



Fid 

..» 22; 

. 13) 



Miami 

Nevada Con 

Quicksilver, com 1 

Ray Con 2I| 

Tenn. Copper 32] 

U. S. Steel, pfd IMS 

u. s. steel, com ill] 

Utah Copper 57] 



Ask. 
0.50 



Ask 
14 
25 
5T| 

7:i 

0] 

2 

85 

:n; 

"i 
35 



Ask 
22] 
14 
2 

21] 
33 

109) 
01] 
t.7] 



M tt rORK i l Mil ill in uim\. 

■ 

1 '. 

Del? % 

Kii.t National.. 

II" g< I 

Iron Bloeaoni . . 
i.. Ron 

LONDON 1(1 OTATIOlfl 
through, tbe courteay of Blolllater. Ly.>n & Pi 
New Fork.) 

July ». 



Jul 








Ask. 




Bid 












lie 


Ulnea • '■• Am. 






m 






1 


K 




H 












It 


Bullion 


W 


'. 


1% 




14 






rnit.-ii i'.-i 




'. 


1 


Yukon Oold 







I s .1. 

Alaska Mexican i lo o 

Alaska Treadwell 7 3 

Alaska United :i n n 

Arl/oua „_,. l Hi :i 

<aiup Bird 7 

Cobalt Townsllc 1 12 11 

El uro o 13 9 

Ksperanza 11 

Granville 8 9 

Kern River imiiei.is o 8 



Mexloan Eagle, com 

Mexico Mines I I 



Messina I 

' Irot Hie 

Paclllciillflelds 

KloTlnto 

Santa Gertrudls 

Tanganyika 3 

Tomboy l 



s. d. 

a 



: 

ii 
3 
I 



Moftal Prices 



LOCAL METAL PRICES 

San Francisco, Juli 9. 

Antimony 9 — y s 4 ,. 

Electrolytic copper is - 

Pig Lead 4.15— 5.10 

Quicksilver (flask) s :; 7 . r. ■ > 

Tin 39 — 10 %c 

spelter 6V4— 6%C 

Zinc dust, 100 kg. zlnc-llned cases. 7V4 t" Be. per pound. 
I: \s| ■|.;n\ METAL >l UtKET 
(By wire from New Sork.) 

NEW YORK, July 9. — A large business Is being done in cop- 
per In botli domestic and export trade, but local buyers' n - 
qulrements are not well covered. The price has moved up 
steadily all the week. Lead and spelter are quIeL Tin is 
steady at 31.90 to 32c. and antimony Is dull at 7.12 to l26i 
In London, copper Is steady at £62 6s.3d. to £62 12s.6d., tin 
Btcady at £111 16b. to £146 5s., and bar silver steady at 25 % tl. 
The American Smelting & Refining Co. Is having trouble in 
starting up its Chihuahua plant. 

SILVER 

Below are given the average New York quotations In cents 
per ounce, of line silver. 



Date 

July 2 56.62 

3 16.62 

i Holiday 

.". Sunda 

6 56 26 

7 56 B7 



Average week ending 

i : ..',7.12 

.June 3 60.62 

" 10 56.48 

- 17 56.56 

" 21 S6.2I 

July 1 56 58 

8 56.42 



Monthly averages. 
1914. 



57.58 


July 


57.68 


Aug. 


58.01 


Sept. 


ns.nj 


Oct. 


58 21 


Nov. 


56.43 


Dec. 



1913. 
.58.70 
.59.32 

.60.53 

, 6U.SS 
.58.76 
.57.73 



1913. 

Jan 33 01 

Feb. 61.25 

Men 57.87 

Apr 59.20 

Mav 60.21 

June 59.03 

QUICKSILVER 

The primary market for quicksilver Is San Francisco. Cali- 
fornia being tne largest producer. The price Is fixed In the 
open market, and, as quoted weekly In this column, Is that at 
which moderate quantities are sold. Buyers by the carload can 
usually obtain a slight reduction, and those wanting but 



Ml 



MINING AND SCIENTIFIC PRESS 



Julv 11. l!U4 



or two mutt expect to pay a slightly higher price. Average 
weekly and monthly quotations. In dollars per flask of 75 lb., 
are given below: 

Week ending I Jan.- 25 

June 11 38.50 July 2 

Is " 9 

Monthly averages. 



1913. 1914. 

Jen 39.37 39.25 

K.I. 41.00 39.00 

Mrh 40.20 39.00 

Apr 41.00 38.90 

Mav 40.25 39.00 

June 41.00 38.60 



1913. 

Julv 41.00 

Auk 40.50 

Sept 39.70 

Oct 39.37 

Nov 39.40 

Li. 4U.0IJ 



1914. 



Lead is quoted In cents per pound or dollars per hundred 
New York delivery. 



I N,I 










. . . 3.90 


Average 
May 27... 

" 10 

•■ 17 
„ L . ( 

Julv 1 


week endlr 


g 










. . . 3.90 


. 3.9(1 




1 


II. 
Su 








. 3.90 












. 3.90 








inn 

1 28 
4.33 


10 

Monthly 

1914. 
4.11 
4 (12 
3.94 
: Bfl 
3.90 
3.90 








Jan. 
Feb. 
Men. 


_ r es. 
July 

Aug. 

Sepl 

Oct 


1913. 

4.:::. 

1.60 

1.70 

. 4.87 

. . 4.16 


191 1. 


Apr. 
May 




















. 1.02 





zivr 
Zlnc Is quoted .'is spelter, standard Western brands, St. 
delivery, In cents per pound. 

Date. 

. . . 1.76 
... 1.76 



July 






I 7.-. 

1.76 
1.76 



\1 
June 



Average week ending 



1.113 

4.90 
1.89 

4.85 
4.85 
1.76 

t 7.". 



Jan. 
Feb. 
Men. 

A,ir. 

May 

June 



1913 

. ". 52 
. :..on 



Monthly averages. 

191 I 



i.l 4 

5.12 

4.98 
4.91 
4.81 



1913. 

July 5.11 

Aug 5.51 

S. pi 

Oct 5.S2 

Nov 5.09 

Dei 5.07 



TIN 



NVw York prices control in the American market for tin. since 
the metal Is almost entirely Imported. San Francisco quotations 
average about 5c. per lb. higher. Below are given average 
monthly New York quotations. In cents per pound: 
Monthly averages. 



1918. 1914. 

Jan 50.46 37. S5 

Feb 19.07 39.76 

Mch 46.96 88.10 

Apr 49.00 36.10 

Mav 49.10 33.29 

June 45.10 30.72 



1913. 

Julv 10.70 

Aug 11.76 

Sept 12 15 

Oct Id 61 

Nov 39.77 

37 7,7 



1914. 



COPPER 

Quotations on copper as published In this - present 

average wholesale transactions on the New York market and 
refer to electrolytic copper. Lake copper commands normally 
1-5 to l-4c. per lb. more. Prices are In cents per pound. 

Date. Average week ending 

May 27 18.98 

June 3 13.86 

l" 13.7s 

" 17 13.65 



July 2 18.85 

13.35 

i Holiday 
5 Sunday 

• ; 13.40 

7 i:'..5n July 

S 13.60 

Monthly avi 



1 13.28 

s 13.4 I 



1913. 1914. 

Jan 16.54 14.21 

Feb 14.93 14.46 

Mell 14.72 14.11 

Apr 15.22 14.19 

May 15.42 13.97 

June 14.71 13.60 



1913 

Julv 14.21 

Aug 15.42 

Sepl 16.23 

Oct 16.31 

Nov 15.08 

1 Dec 11.27, 

ASSOCIATION REPORT 



COPPER PROIUCERS 

The Coppei Producers' Association statement tor .lone shows 

a decrease In production and increase in stocks on hand. The 

details are as follows: 

Pounds. 

stocks of marketable copper of all kinds on hand at 

all points in the 1'nit. .I Stat - 1. 1911 si. 212. 611 

Production of marketable copper in the United States 
from all domestic and foreign sources during 

.In io- 141.31.1. 

15.927,000 

Deliveries for export June 73,350,477 



Stock of marketable copper of all kinds on hand and 

at (til points in (he I'. 8., July 1 :>7. 1 

Recent changes in surplus have been as follows, in pounds! 



690.830 



77::.. 



Increase. 

June 1913 

July 

August 

September 

October 

November 15.863.U47 

December ..%. 43.509,438 

January 1914 

February 

March 

April 5,7. 

May 14.005,640 

.lime 12,768,022 



Decrease. 






1.142.1S2 
8.924.833 

i:;.7i;^.7,:!;i 



COAL \\i> COKE I'lllllll t TIO\ 
The following data, covering 1913. is from the U. S. Geolog- 
ical Survej : 

Miners Coal Coke 

em- mined. made, 

ployed, tons. Value. tons. Value. 

Alabama $ 3,323.664 $ 9,627,170 

Arkansas 4,660 2,234,107 3,582,789 

Illinois 1,859.553 8.:, 

Indiana 2,727,026 13,182,136 

Iowa 15.679 7,490.641 13.431.061 

Kansas 12,479 7,202,210 12.036,292 

North Dakota 495.320 750.652 

Tennessee 11,263 6,903,784 7..ss:;.7l4 

Texas 2.429.144 4,288,920 

Virginia 9.162 8,S28,0fis 8,952,653 

Each of these states produced more coal than in 1912. Alaba- 
ma coke output was 348,175 tons over the previous year, and 
this increase was from by-product ovens. These yielded 2890 
Ions per oven, against 212 tons from the beehive type. Coke 
made in Illinois and Indiana comes from West Virginia mines. 
Iowa is primarily an agricultural state, and excepting the 
coal used by railroads, the sale depends on rural communi- 
ties. Kansas operators had little to complain of in 1913. The 
North Dakota output is all lignite. The year was satisfactory 
in Tennessee. Texas produces lignite and bituminous coal 
in equal quantities. 



Pbodcctios of abrasive garnet in the Tinted States in 1913 
amounted to 5308 short tons, valued at $183,422, according to 
i he U. S. Geological Survey. This was the largest in the his- 
tory of the industry, and an increase of 361 tons in quantity 
and of $20,185 in value, compared with the production for 
1912. The industry was confined to three states, New Hamp- 
shire, New York, and North Carolina. 



Tin STATISTICS for June show the following movements, ac- 
cording to L. Vogelstein & Co. of New York: Shipments of 
standard metal to America. England, and Europe, 7N94 tons; 
deliveries, 8995 tons: visible stocks. 18,562 ions; average price. 
30.60c. per lb. Figures for May were 11. 744.887. and 19.668 
tons, and 33.25c respectively. 



Billion received at the San Francisco mint during June 
was as follows: Gold. 143,156 oz. worth $2,959,303; and silver, 
21,632 oz. worth $12,114. The coinage executed was $3,000,000 
in double eagles, and $21,500 in one-cent pieces. Coin, bullion, 
etc., on hand at the end of June amounted to $246,370,870.83. 



Tin: Lake Sufebiob Minim. Institute will hold its nine- 
teenth annual meeting at Ishpeming and Detroit at the end 
of August and beginning of September. A first-aid demonstra- 
tion will be held, and the mines visited at ishpeming. 



Artificial graphite manufactured at Niagara Falls in 1913 
was valued at $973,397. 



II. I9M 



\II\1V. \M> S< II Mil l> I'KI SS 



-1 



COMPANY REPORTS 



IM OMPANT 

•i annual rrpoit Ol Ihl. Coni|*ny for tbf II ■ 
■larch 31. 

' lll'llUCtlni .!,.,u-lloli ,,! i 

»r»l».' and all other charters, the Ml profits amounted i., |i. 
Dividend ,nd ..minion stock! lo 

Id, and Hi. turn 

10.441 nr.- currsn ca * on 

•>»»•) ! luirltik- Hi,- >.ar. Ih. u, 

eondlUs Ida in toe hmI Industry, coupled with i...,. i 

r tin- oatpal of eappcr, resulted in the earn 

UUUI f.ir lllf |U. M;„u IN,- 

In lli. Mueller :iti.l 11 
Men will result In a greater output at lowi | 

will probably be felt during 
year. 

HAMPDEN CLONCURR1 COPPER minks. Ltd. 

The r,-i>ort of tills Queensland Companj covers lite half- 

nded February U, 1914. In the six mines, ■ total ol 

::i*7 M. of developmi nt wa» done. The Duchess shaft was 

sunk to 727 ft. Three winzes, sunk below the 560-ft level, 

ore al depths of 9" to 126 ft Reserve* 

In this mine are estimated al 67,000 tons. At 860 ft. In the 

Hampden, a sulphide orebody has been opened for 220 ft. It 

from 4 to 9 ft. wide, averaging 10$ copper. This ore 

contains less than Jo , jllica. No. 1 shaft was sunk to 523 ft. 

A low-grade shoot was cut al 190 ft . and driving at .". t. 

has open.-. I or.- assaying 10.191 silica. 61.2$ iron oxide, 39.1% 
sulphur, and :: v , copper. Reserves total 67,000 tons. Seven 

• i al 200 ft In the Trekelano mine. Re- 
in all mines are estimated as 211. ions averaging 

about lo-. copper. Ore smelted was 23,106 ion- producing 
.60 lb. copper, 1»23 oz. gold, and 26,172 oz. silver. The 
te was E222.158; profit £66,847; and dividend, £35.000. 



l.lt'KV TIGER-COMBINATION GOLD MINING COMPANY 

This Company has its general office in Kansas City, 
Missouri, and controls the TigTe Mining Co., which operates 
mines and mills at El Tlgre, District of Moctezuma, Sonora. 
M.xi.o. The i.-port covers the calendar year 1913. The re- 
Iiorts of the consulting engineer, James W. Malcolmson, and 
general manager, L. R. Budrow, contain the following infor- 
mation: 

Development totaled 49S4 ft., of which 2400 ft. was diamond- 
drilling, the latter cutting the Kelley vein on No. 3 level 150 
ft. east of the main vein. No. 2 level cut this shoot, which 
has developed about :!00 ft. of a good grade of ore. Cross-cuts 
w. re drivt n on No. I. ::. and 3% levels to cut the vein. No. 3 
reached it. and 89 it. of driving was done in ore. The other 
cross-cuts have since cut the vein. Stoping was started on 
this vein in February. 1914. Work on the main Tigre vein 
totaled 2291 ft., and on the Sooy vein, 39 ft. Development 
cost 59.2c. per ton. There was 56.0S1 tons of ore broken, of 
9.2c. per ton. Concentrate produced was 2358 tons, assaying. 
0.493 oz. gold, 285 oz. silver, 2.32% copper, and 12.05% lead. 
Broken ore in stopes amounts to 28,907 tons. Mining cost 
$2.80 per ton. 

The mills crushed 68,528 tons of ore, and the cyanide plant 
treated 64.757 tons of current and 21.77S tons of dump tail- 
ing, at a cost of $3.99 per ton. Ore transport to the mills cost 
9.2c. per ton. Concentrate produced was 23S8 tons assaying, 



I mill a «.. i ih t/||| |.. 

■ 

ions was ' 

total avallablt wi I 

nut ol Ibis, II dividends were paid totaling ti 61 1 the 

. sab on hand ." the end ol the | ■ 

OROYA links. LIMITED 

AS will be well from III. ... lompan. In, 

pan] controls a lugs area al Kalgoorlla, Western Australia, 

on which it Is doing n considerable ■ unl ..t »,,iu, ,, 

trihincrs or rho mostlj worked In the oi 

sport coven the year ended December 21, 1912 The 

'it. ml. nt Is P, FltSgsrald, and general man.. 
Morelng & Company 

Development In the various claims totaled 6960 ft, »Ibo 
m cutting an. i surface trenching. The expendltui 




. l \l \l HAP SHOWING oliov \ LINKS PROPERTY .\ M' "I n I H 

hi ires \ r k iLoooai rs. 

El 1,626, equal to 50c. per ton milled. A good deal of work 
was done at and above 750 ft. in the Eclipse mine; the Croesus 
Proprietary shaft was sunk from 750 to 935 ft. (now 946 ft), 
(he lode being cut at 932 ft.: work was confined mainly to 
the oxidized portion of the Brownhill west lode; and in the 
Oroya north block, the Magazine lode worked by trlbutera 
was followed down to the boundary in rich ore. but above 
110 ft. there was nothing of importance disclosed. Ore re- 
serves are estimated at 146.775 tons worth $5.82 per ton. an 
Increase of 32,460 tons and 16c. per ton In value. Trlbutera 
on nine claims mined 4183 tons of ore yielding £9589. on 
which the royalty was £1831. Results were as follows: 
Ore extracted from five mines (Eclipse and Oroya 

North mainly), tons 139,130 

Gold from 50-8tamp mill, slime and concentrate plant, 

etc £151,819 

Net profit in Western Australia 15.899 

Forward to 1914, including balance from 1912 18.180 

Cash at bankers, in hand, and on loan 61,916 

Total cost per ton $3.86 

During the first quarter of 1914, 35,630 tons of on- was 
treated at a profit of £4826. 



INSPIRATION CONSOLIDATED COPPER COMPANY 

The Inspiration property in Gila county. Arizona, is the 
scene of great activity. Aside from mine development, a 
mine plant, a 10,000-ton concentrating plant, and the testing of 
the flotation process at the rate of 600 tons per day is 
under way. The report of the general manager. C. E. 
Mills, covers the year 1913. The property now total- 
acres. Underground preparation for ore extraction contimud. 



K'J 



MINING AND SCIENTIFIC PRESS 



July 11, 1!H4 



i. niii totaled ::t.7i'.ii it., making a toiai or 110,609 it. 

in date. There »as hoisted 47,200 tons of 1.86% copper ore, 

tons "I waste. Ore on hand in stockpiles amount- 
ed to 196,000 tons, averaging 1.79%, al the end of the yea*. 

In the Live Oak claims 17 holes were drilled an average depth 
of :ll ft., and 6,858,000 tons of carbonate and sulphide ores, 
assaying from 1.38 to 1.45%, was developed. Churn-drilling 
■ en very satisfactory. Reserves are as follows: 

Copper 
Class of ore. Tons. Percent. 

Sulphide 45,000,000 2.00 

Low sulphide 2s. 322.000 1.26 

Oxidized 12.445.000 1.34 

Mixed carbonate and sulphide 3.876.000 1.21 

Total 89.643.000 1.64 

Mining operations will probably he confined for many years 
to the higher-grade ore, 

Surface equipment at Inspiration for a capacity of 10.000 
tons per day is as follows: Steam power-plant of three 6000- 
kw. generators, head-frames for two main shafts and receiv- 
ing bin of 2000-ton capacity, two electric hoists of the Ilgner 
system, air-compressors to supply 11,000 cu. ft. per minute 
for mine drills, high-pressure compressor for underground 
locomotives, coarse crushing plant with four No. 8 gyratory 
crushers and eight 48-in. disc grinders, ore storage bins on 
railroad at mine to hold 25.000 tons, ore-bins at mill to hold 

!_', I tons, concentrating plant 1U miles from mine, water 

supply plant of 5.000. 000 gal. daily capacity, and 7'_. miles of 
.M'd-gage railroad to the miue, mill, smelter, and con- 
necting railroad. The plant should start at the end of 1914. 

To provide the funds necessary for extensions to original 
plans, etc., five-year 6 r 7 convertible debenture bonds, amount- 
ing to $4,500,000 were authorized. Assets totaled $20,586,996, 
Including $1,781,146 cash. Liabilities include accounts paya- 
ble. $127,836; and 10-year 6% convertible bonds. $6,000,000. 



.Xim'N'T LTELL MINING & RAILWAY COMPANY, LTD. 

The report of this Tasmanian company covers the half-year 
ended March 81, 1914, and is replete with data on mining. 
smelting, and new power scheme: with photographs, plans 
of the district, and of the North Lyell mine. The combined 
reports of the general manager, Robert C. Sticht : engineer 
in charge of mines. R. M. Murray; local superintendent. Basil 
Sawyer: metallurgist, R. P. Roberts: chief mechanical 
engineer, G. W. Wright; superintending engineer of rail- 
ways. E. Carus Driffield; and engineer for supplies, Huntley 
J. Clarke, contain the following information: At the Ml. 
Lyell mine, overburden was removed from benches No. 2a, 3a, 
3b, 4c, and 5. Ore was broken from No. 4 bench. Only 19,934 
tons was taken from the open-cut. No. 6. 7, and S levels un- 
derground were actively worked producing SS.507 tons. Dia- 
mond-drilling 545 ft. yielded promising results. This mine 
supplied ""il tons of pyrite (45'; sulphur) for the Com- 
chemical works in Australia. Ore reserves in the 
parent mine amount to 2. 097,072 tons averaging 0.531% cop- 
!" i 1 96 oz. silver, and 0.0275 oz. gold. 

Prospecting was done in the south Mt. Lyell mine. 

The north Mt. Lyell mine produced 60,461 tons of ore, 

and 120 tons of copper precipitate from underground water. 

as cut at the 1100-ft, level for a new hoist winze 

i pen the orebodies below this level. Work was 

also started to connect the 200, 700. and 850-ft. levels with 
the Crown Lyell shaft. Ore reserves in the North Mt. Lyell 
are 1,025,651 Ions averaging 6% copper. 1.33 oz. silver, and 
oz. gold. 

Prospecting was done on five levels in the Lyell Comstock 
mine. Development in all mines totaled 4531 ft., including 1836 
ft. of drilling. The blast-furnaces treated a total of 163,513 



tons of ore. fluxes, etc.. Mt. Lyell supplying the has;. 
North Mt. Lyell the silirious ore. The average mixture 
smelted contained 2.49', (upper. 1.82 oz. silver, and tf.028 oz. 
gold. From 9360 tons of matte, there was produced 3433 
nuts ot blister copper, assaying 9S.7SV, copper. 67. 5 oz. silver. 
and 1.312 oz. gold per ton, equal to 3391 tons of co 
231,740 oz. silver, and 4 ."">"> 4 oz. gold. Costs were as follows: 
Mining. $2.43: smelting. $2.13; and converting. 30c, a total 
of $4. Sti per ton. against $5.32 in the previous term. 

After deducting all charges, the net profit was $2!' 
With the balance from the previous half-year, the amount 
available was $2.9sO.OOo, out of which $3S5.0nu was paid as 
dividend No. 17 of 30c. per share. On June 15, 1914. No. 




PLAN OF Ml. Ill I I PBOPEBTY AMI IIISTUIt it. thi: m:w PciWKIi 

PKOJKCT is sirr.vrtn A rav milks nokth. 

18 was paid, amounting to $300,000, or 24c. per share. Assets 
show a surplus of $1,680,000 over liabilities. 

Rainfall at various points in the district was from 31.18 to 
88.28 in. on 87 to 119 days. Good progress is being made 
with the Lake Margaret hydro-electric scheme, the plant 
being well under way. and all transmission poles erected. 
Power should be available in September, 1914. 

An experimental plant has been erected at the smelter 
to test ore by flotation methods. Trials on North Mt. Lyell 
ore have been made, and those on Lyell Comstock were 
satisfactory. 

The three chemical and superphosphate plants ill Australia 
operated it: the usual satisfactory manner. The South 
Australia:! interests were amalgamated with those of the 
Wallaroo Phosphate Co.. Ltd., and a new company registered. 
The railways were kept in good order, the revenue being 
$97,000. and expenditure $77,000. 

The Company's metal production since August. 1903, is: 
Copper. 127,498 tons: silver. 10.626,593 oz.: and gold. 321. 1»4 
ounces. 



MI\1M. WD SCIEN1 II I' 



RECENT PATENTS 



RECENT PUBLHCATHONS 



1 with mu electric arc 

- lor iii.ltlme "' '" "I inil.il from on- 

■ 

i ,1... ..I in, Hint .li.iiiili.r 

hanslnn »hn(t uInii.- Hi.- chamber, provided wild 

•h rhnrKliu; »|HTUir.-i<. sutd i|«r 

normal!) closed bj the i-hnrKiiiK material, a Hue 

the melting chamber through the. material being 

.^ through iiiu shaft, and a pin 

-; into the melting chamber rob- 

slantiall) a* il> .•>. :rll>< J. 

,i camotlte ami 
mil similar vaiuiiinim ami uranium mim-mi*. Herbert 

• hlmgo. Illinois. 

and allied ores, i oflslatlng 

itlng the or,' In presence of sulphuric acid until a mass 

Is obtained which Is solid when cold anil which contains sub- 

illy all of 111,- vanadium nn,l uranium In a readily Bolu- 

ndltlon. extracting the solulile constituents from the 

treating the solution thus obtained to recover the 

• therefrom, and treating the residue for the concen- 

■I 01 lis radium content. 

■ 1<3— Ore concentrator. John L. Slgnorette, Los An 

California. 

In an ore concentrator, the combination with a base, of 

;;,!>orls carried by said base, a tray mounted on 

a longitudinally extending bumper bar connected 

with the bottom of the tray, a standard mounted on the base 

and of the tray, resilient means for reclpro- 

the i ray. means carried by the standards adapted to 

be engaged by the bumper bar during the reciprocation of 

the tray to jar such tray anil Independent adjusting devices 

for the resilient means and last-mentioned means whereby 

the shock at either end of the reciprocation may be regit- 

1.217; 1,100.218; 1,100,219; 1,100,220; 1,100,221; 1,100,- 
1 1,100,223 have been granted to Charles Butters. Oak- 
land. California, covering apparatus for fllteritiK slime. This 
Includes, respectively: (Da suction filter-leaf having means 

tnlttlng water thereinto to dislodge a cake therefrom, 
and a relief valve In communication with the upper portion 
i i relieve said leaf of air as watei is admitted there- 

to; i :' i in a suction niter-leaf, the combination of a frame 
filter media carried thereby and a water-supply pipe for cake- 

-iug purposes connected to said leaf, said pipe having 
an opening to atmosphere near its point of attachment to the 
leaf: i :; i a Biter-leal having means for equalizing the exter- 
nal and Internal water pressure thereon while said leaf is 
submerged; (li a suction filter-leaf having a manually 
d valve connected with a submerged portion thereof; 
("n the step in the process of treating slime which consists 
in running water through the filtering means while sub- 
laid means in the slime; [61 a filter-leaf having a 
header, a frame, filter media mounted on said frame and sup- 
ported by said header, and a perforated pipe mounted on 
said leaf above said header: and (Ti the process of dislodg- 

ime cakes from filter-cloths, which consists In saturat- 
ing without pressure substantially the entire surface of the 
cloth while the cake is thereon. Patent 1,100,267, consisting 
of a filter medium for a suction filter-leaf open across the 
bottom was granted to William Anna Stedman, of Wonder. 
Nevada, assignor to the Butters Patent Vacuum l-'ilter Co.. 
a corporation of Nevada. 



B] i r 

: 

id Mac lonal at Ulnerl 
17, ill . mu ode Chid 

ami 1914 

OaAPiin M n- ran mi Boi n •-. t; pgog 

iim- in w. s Tangier Smith. Reprlni from I 
P 58 Illustrated. 

Till MiMium ScaiI>T 01 S,,i i n, v. Y.,m; Sim. 

- lasoou By Charles HHnhard 

From Inn/iN of the \,. w y or k Ai ad-my of BotencM 

IOLKUU INDUSTRY ,,l Cm iiiihmi. By j. II Q, Wolf It.- 
print >'i address given April IT. 1914, before the San Francisco 
chapter of the American Society of Civil Engineers P, 17 

Maps and charts. 

QsOLOOl 01 in> Si i mum, U,,, k ami (iiiii\m Hum Imhii 
Rkskbvations, Niiiiiii ami Sui in iiAKi.ii. By w. it. Oalvert, 
\ I. Meekly, v. 11. Harnett, and M. A. Pishel. Bulletin ',?',. 
P. 49. 111., maps. 

Mini km. Id s,.i iters hi WASHINGTON, with statistics for 1912. 
Liy Henry l.andes. Bulletin 11. P. G5. Maps. Washington 
igical Survey. Olympla. 1914. This will be reviewed In 
her issue of this journal. 

Mining Advance Into iiif. Inland Emi-ike. A comparative 
study of the beginnings of the mining Industry In Idaho and 
Montana, eastern Washington and Oregon, and the southern 
interior of Brilish Columbia; and of Institutions and laws 
based upon that industry. By William J. Trimble. A thesis 
submitted for the degree of doctor of philosophy at the Uni- 
i ;sity of Wisconsin. P. 254. Map. Madison, Wisconsin. 
Price, 40 cents. 

Coal, On.. C..\s. Limestone, and Iron Oiie Map. Revised edi- 
tion by the West Virginia Geological Survey, February 1, 1914. 
It contains a thorough revision of the coal, oil, and gas develop- 
ments, several anticlinals being added and others corrected 
from later observations. The names and addresses of 918 
coal companies operating in the state are given by counties, 
as well as the locations of their mines. The names of many 
new towns, post-offices, etc., are added, and the valuable iron 
ore deposits of the state are also Indicated on this map, and 
all the special features of previous editions corrected and 
brought up to date, showing the approximate areas of the sev- 
eral coal series, as well as the oil and gas pools. Scale 8 miles 
to the inch. Price, enclosed In strong envelope and delivered 
by mall. FiOc. each. 

Kanawha Coi my. By Charles E. Krebs, D. D. Teets, Jr., 
W. Armstrong Price, and I. C White. West Virginia Geologi- 
cal Survey publication. P. 679. 111., maps, 3S plates, index. 
Morgantown, 1914. In addition to the description of the 
Kanawha coal series and all the geologic features of the 
county, tne geologic map gives the structural contours on the 
Pittsburgh coal horizon north from the Kanawha ami 101k 
rivers, and on the Kanawha Black Flint south and east of the 
Elk and Kanawha rivers, as also t lie location of the anticlines 
a id vniliiiis showing their relations to the several oil and 
mils of the county. The soil map and report of the ex- 
perts of the U. S. Department of Agriculture covering this 
region of the state should prove of especial value to the agri- 
cultural and horticultural Interests. Price, with ease of maps, 
delivery charges paid by the survey. $2. 



64 



MINING AND SCIENTIFIC PRESS 



.Ink 11. 1HU 




A New Use for Belt Conveyors 

Using a belt conveyor for the rapid transportation of wet 
concrete is quite a new departure and especially so is the 
elevation of such material on belt conveyors, owing to the 
tendency of the water to separate out and run back. How- 
ever, by speeding up the belt to over 400 ft. per minute this 
tendency is overcome and the success of this method can be 
appreciated through the fact that over 2000 cu. yd. of wet 
concrete were thus conveyed to the forms in a working day 
Of 10 hours in the construction of the Pacific Gas & Electric 
Co. '8 dam at Lake Spauldlng. 

The concrete is mixed in a house on the mountain side, not 
shown in tl'e illustration, where five one-yard mixers of the 
revolving drum type are kept in constant operation, which 
discharge the mixed concrete directly upon the horizontal belt 



fuel valve may be varied while the engine is iu operation: 
starting valves are operated by air: a direct connected in- 
jection air compressor forms an integral part of the engine: 
and a continuous system of lubrication with a filter and 
cooler in circuit is a part of the equipment. The engine is 
adapted to all classes of fuel oil. 



Autotraction Drill Rigs 

The drilling of deep blast holes of relatively large diameti t 
is coming to be more general practice in the conduct of all 
large mining operations, in railroad work, quarries, and 
all classes of large excavations. To meet the demand for 
drill rigs to drill deep vertical blast holes the Sullivan Machin- 
ery Company offers the autotraction drill. The purpose of 
this machine has been to serve the public with a drill which 



1 










\ r— _. - -. 



BEI CVEYORS HANOI. INC ii.m I:} It AT .IKK SPAfl.DINO RAM. 



conveyor traveling at a speed of about 400 ft. per minute. 
Tin's conveyor discharges into a gravity chute leading down 
the hillside to the first elevating belt conveyor, which carries 
it upward at an incline of 18° to a tower erected on the 
dam, from which it is chuted down to another belt conveyor, 
. ting at an incline of about 15° and again carried up 
to the final gravity chute. The conveyors used in this in- 
stallation were furnished by the Meese & Gottfried Company 
of San Francisco, through whose courtesy the halftone is also 
presented. 



The Fti.TON Iron Works of St. Louis. Missouri, in Bulletin 
A' describe the Fulton-Tosi oil engines, which are a high 
compression Diesel type engine. This particular engine is 
built in the vertical form and with two, three, and four 
cylinders. It is claimed the engine may be started from cold 
within one minute without any trouble or time consuming 
preliminaries. The points of advantage claimed for this 
particular engine are the open A' frame construction, pi r- 
mitting easy access to main bearings; the cylinder is cast in 
the form of a removable liner from hard iron; all valves are 
in separate cages and in the cylinder head; liming as well as 



will drill deep holes faster and at a less expenditure of labor 
and power than the heavy tripod or cable drills, which are 
the two methods in common use. Toward this end the Com- 
pany has designed the autotraction drill which permits of 
the length of run or feed of from 10 to 20 feet, thus obviating 
the frequent stops necessary to insert longer steel in the well- 
known tripod types. Another advantage claimed for this 
drill for deep hole work is the ease and speed with which 
the autotraction drill can be moved from a completed hole 
to the site of a new one. The moving of a 4'j or 5-in. tripod 
drill, as those with experience will appreciate, is a slow job 
requiring several men. As compared with drills of the cable 
or well-boring type, the autotraction machine, with its 
reciprocating air or steam-driven piston is claimed to be a 
much faster driller. These outfits consist of a vertical stand- 
ard or carriage, carrying a rock-drill cylinder attached to a 
heavy iron recoil block, which is suspended in guides, or ways. 
by steel cable passing over a sheave and alternately paid out or 
taken in, as needed, by a hoisting drum. The standard and 
hoist are mounted on a wagon truck made of structural 
steel. A 2-cylinder reversible engine provides power for the 
hoist and for moving the outfit from place to place. 



I- 1914 



\II\IV. \M> S< II Mil l> 1-KI SS 



MOST RECENT DEISTER DEVELOPMENTS 

in Sand and Slime Tables 



It wi 

detai 



11 interest YOU to learn 
Is of Our Latest Success. 




We will be glad 
to furnish catalog 
and data. 

Also investigate 
our classifier. 




iv.wl •• 



'itrnttir. 



Manufactured and 
Sold Only by 



. M.i. 

Deck Btmpti 

Usu I 

I-., i 



X -III .1 

i single 

■in...!. 



ipaiu'i 

initur. 



DEISTER MACHINE COMPANY 

INC. JULY 1912 
Home Office: Shoaff Bldg., Fort Wayne, Ind. London Office : Salisbury House, London Wall, E. C. 




*^ 



HARD WORK 

is the kind of work you expect in Rock Drills. And you 
demand of them the strength to stand up to it. 

How to fulfill this demand — how to minimize hreakage to 
the point of the greatest possible security — how to make 
efficiency overcome the persistency of rising maintenance 
costs. These are the questions which have found answer in 




Cleveland "Neverleak" Couplings Are Absolut ly 
Guaranteed Against Leakage. 

The shock and strain thai machines of this type are called upon to undergo 
in service requires that every possible part shall be marie of drop forged 
steel, and that's the way we make them. 

our petalog la a straightforward, "open-faced" compilation which you "ill approve. 

The Cleveland Rock Drill Company 

6410 Hawthorne Avenue, Cleveland, Ohio 

Loa Angela. Cal.: Smith-Booth-Usher Company tehpemlng, Mich.: P.O. Boj 

-.i ■ Lake City, Utah: Sail Lake Hardware Company Butte. Montana: Western Mining Supply 

Sew York »h> : soi i.i.n-ii Street Spokane, Wash.: Pafrbanks-Moi - 

Pacific Coast Agent : ' - E.Green, Care of The Emlgb-Wlnchell Hardware Co., Bacramei bo 



Mining and Scientific Press 



ESTABLISHED MAY 24. 1860 



Vol. 109 



San Francisco, July 18, 1914 



No. 3 



coy TROLLED BY T. A. RICKARD 

PUBLISHED WEEKLY BY THE DEWEY PUBLISHING CO. 

AT 420 MARKET STREET. SAN FRANCISCO. 
Cable Address: Pertusola. Code: Bedford McNeill (2 editions). 

BRANCH OFFICES: 
CHICAGO — 800 Fisher Bdg. Tel.: Harrison 1620. 
NEW YORK— 1808-10 Woolworth Rdg. Tel.: Barclay C169. 
IN— The Mining Magazine, Salisbury House. E. C. 

■ess: Oligoclase. 



ANNUA I. SUBSCRIPTION: 

ea and Mexl M 

$4 

Other Countries i 21 Shillings or $5 






Manager 






cond-Class Matter. 



AMONG OUR CONTRIBUTORS 



Who writes a paper is often as important as what is said. 
Our own opinion on what the Administration at Washington 
in Mexico lias large value — to us; the President's 
opinion haa value to everyone interested, in the nature of 
ise, much o! what is written is opinion. Even when 
the nn Qtioua effort is made to state farts, and facts 

'srmal equation enters because in the mere 
. present, Judgment is exercised as to their rela- 
The Press tries especially to have its arti- 
cles authoritative and we have many friends to thank thai 
,: 11. Mosl ot Its contributors are well known 

nl need no Introduction to our readers, but we have 
ne might i"' interested in a bald statement of 
Who's Who as applied to a rei re number. 

I ::n i si wmerhayes is t he manager of the Intel 
mill Unit he descril.es so clearly. The Porcupine-Crown 
Mine Ltd., by the way. is owned largely by the same | 
who have done so well with the Crown Reserve at Cobalt. 
Mr. W. B. Bi.vTii. who calls attention to the need of a stand- 
ard of hardness it tube-mill tests are to be accurately com- 
pared, is an Australian who occupies the responsible posi- 
tion of chief metallurgist for Bewick. Moreing & Co. at 
Kalgoorlie. 
Mr. D. F. HlGGINS is an American geologist resident in Korea. 
He was trained at the Universities of Illinois and North- 
western University, from which schools he graduated. Be- 
fore going to the Far East he saw field service with the 
State Geological Survey of Illinois and the Geological and 
Natural History Survey of Wisconsin. 
Mr. G. T. Ja< KSON, to give him the correct initials, is mine 
rintendent of the Perseverance division for the Alaska 
neail Mining Co.. which it will he remembered is the 
name of the operating company of the Alaska Gold Mines Co. 
Mr. F. R. [i it 5B1 Is one of the field officers of the Forest 
Service who has learned of the practical operations of the 
mining law and come to know prospectors through the fel- 
lowship of eampfire and tl 
Mr. E. E. Hi iija is an experienced observer and writer who 
is visiting the important mining districts of Alaska this 
u in the interest of the Press. 



TABLE OF CONTENTS 



EDITORIAL Page. 

Notes 85 

Lead Poisoning 86 

Sulphur Production 87 

ARTICLES 

Continuous Decantation at the Porcupine Cbowk Mini - 

By Maurice Summerhayes 88 

A detailed description of a mill treating gold or.- worth 
Sir, t" $:'.'> per ion at a cost of fl.il per ton. Crushing 
mps an.i tube-mills, ami Dorr thickeners an 
jed in sequenci for continuous decantation. Min- 
im; 18.460 tens siuei- erj of between t") ami 
97 Tier cent. 

Ti ia-Mii. l Practice ami the Hardness of Ores. 

Bu W. B. Blyth 93 

A plen for a Btandard ei hardness in order I ford 

real basis foi comparts I Brushing efficiencies, with 

ii method of determining the factor and lllustral 
examples. 

Geological Report on the C ibas Contact Within the 

Si av Mining Concession, Korea. By D. F. Biggins. 96 

Details i i the Inti ontact metamorphlc gold de- 

enabled the Seoul Mining Co. to pas 
17591 in dividends in the four years since Its mill 

e.l -e the mosl successful Ani'Tieui ventures 

111 the Fur Bast. 

a Concrete Head-Frame. By <:. t. Jackson 99 

ptlo built at 1 he upper 

works of tin- Ahisk.i Gastlneau mine at J iau: e 

thing ii ' A and Important. 

Tin: Mining Law — Proposed Revision. By F. 7?. Ingalsbe. 100 

a review of the situation by one who is familiar with 
present taw and hopes to see 

led with the minim I 

Minn nts 01- the Alaska Gold Minks Company. 

By E. E. Huria _ 103 

- conditions at tins great Juneau property as 
i n by our Bpecial correspondent 

Costs it the Gseat Fingall Mini: 104 

DEPARTMENTS 

Iiisi I ssion ; 

Workman's Compensation. By Geo. E. Bigelow 105 

Value of Dredging Ground. By E. Bryant Thomh ill . . 105 

Revision of the Mining Law. By Clarence K. Oolvin. . 106 

What is the Matter with Prospecting? By Operator.. 107 

Concentrates 108 

Review ot Mining: special correspondence from Wash- 
ington, D. C New York, Warren, Deadwood, Johannes- 
burg, Joplin 109 

Tut: Mining Summary 114 

Personal 118 

Schools ami Societies us 

The Market Place: 

Stocks and Bonds 119 

Metal Prices 119 

Mineral Statistics: 

Aron Hirsch & Sohn's Annual Copper Report 120 

Monthly Copper Production 121 

Mining Decisions 123 

Recent Publications 123 

New Machines &nd Devices: Channeling Machines: Vari- 
able Volume Air-Compressor: Commercial Paragraphs. 124 

An indez to Volume t08 has been prepared and mil! be sent 
on request. 



I- 1'iU 



\II\IV. \M' * I! Mil h I'H 






EDITORIAL 



M W 

THOM i 1 .:K • 

RICHARD 






\Mlal . 



A U 

I'. I . 






A\ .,li>.p lutely new discovery' in metallurgy heralded 
ie time ago as the Clapp process, which would 
make "'extraction recoveriea .is follows: copper 01 

6 per ••'■nl; nickel, 99.6 per cent; iron and lead, 
in;.; to 99.6 per cent," and would "revolutionize mining 
in the Western states." for some unknown reason lias 
failed '" revolute. There must I"- a reason. 

THE passing of Vietoriauo Uuerta from Mexico's 
political arena marks another change in tin- aspect 
of Mexican affair*. In thai no good could possibly re- 
sult to the Mexieau people from his continuance in 
with revolution, secession, and bankruptcy ever 
upon the ascendency, il can only be hoped thai in the 
reconstruction which now seems pending, broader po- 
litical foundations, which will meet the requirements of 

the mass of the i pie, will be hud and peace will ensue. 

- Don Vietoriauo y sm i sor. 



HALF-WATT NITRO LAMPS, the latest develop- 
ment in the field of electric lighting, according to 

report bid fair to i lify the present methods of illu- 

minating. The advance which iliis new lamp marks may 
| )C better understood l>> a comparison of efficiency with 
the time-h red carbon filament and its currenl con- 
sumption of ovi r six watts per eandle-power. The new 
half-watt nitro lamp is of the tungsten filament variety 
with the bulb filled with nitrogen gas. At presenl the 
lamps range in size from 600 to 5000 candle-power, but 
with the perfection of methods of manufacture it may 
be expected that the half-watt nitro lamp, which is equal- 
ly suited to both alternating and direct current, will 
be available in all of the commercial sizes. 



DECORATION of Mr. Charles F. Rand with the 
Order of Isabella by the King of Spain is a pleasing 
recognition of his humanitarian and other services in 
('nha during the Spanish-American war. It almost 
makes us regrel thai America has no official -order of 
Merit,' since it could so worthily be bestowed upon Mr. 
Rand as r gnition fn ur side of his equally great 

work in the interest of sanitation and improvement of 

living conditions in time of peace. We shall have tin- 
pleasure shortly of printing a description of this work 
written by Mr. Rand himself. The able president of the 
Spanish-American Iron Company is an exponent of suc- 
cessful business on the highest plane, and we are glad 
to congratulate him upon an honor worthily won. 



I NNUAL drilling contests, which are the aucienl 

* sport of the mines and have long lor I the chief 

attraction in many ol the mining camps on the Fourth 
of July, were in evidence this year as usual. Results 
are recorded in the 'Mining Summary' of this issue. 

While fi rat -aid contests hav ie to divide attention, 

lu-awn. drill .steel, and granite continue to hold the cen 
tre of the Btage. 

C' I-' VP METALLURGIST is ., degree not c 

^ by any of the accredited technical schools, but is 
nevertheless a n;d vocation amounting to a profession, 
according to Mr. William Jacobus, the original 'scrap 
metallurgist ' While most of us will associate the 'scrap 
metallurgist' with the 'ragman,' we must admit thai 
Mr. Jacobus is worthy of an S.M. at least, if he has 
saved the Navy Department $2,000,000 a year by the 
institution of his methods in disposing of scrap metal. 



TVTIII1.K the Australian Labor Federation is debat- 
** ing the feasibility of insisting upon the dismissal 

of all non-union men from the Australian goldfields, the 

i hamlier of Mines of Western Australia announces 
that it will close every mine in that region rather than 

be dictated to by labor unions. Mine operators and 
labor have always maintained amicable relations in this 

district having met in convention everj three years ami 
adopted a labor agreement. It is to be hoped that this 

policy may be Continued and a Crisis avoided, since if 
the business of mining continues it must be at mutual 
profil of men and operators. 

ll/TINERAL LANDS On Indian reservations is the 

-"■*■ subject of a bill recently passed by the United 

States Senate. According to the new regulation, all 
lands containing the minerals, kaolin, kaolinile. fuller's 
earth, china Clay, and ball Clay, within such parts of 
Indian reservations as have heretofore been opened to 
sett lenient and entry under arts of Congress whieh did 
not authorize the disposal Of such mineral lands, shall 
be open tu exploration and purchase and be disposed 

of under the general provisions of the mining and coal- 
land laws of the United stales, ami the proceeds arising 
therefrom shall be deposited in the treasury. Senator 
Sterling of South Dakota, who proposed the bill, claims 
it to he of considerable importance to his state, in that 
deposits of fuller's earth of economic importance await 
such action to be profitably exploited. Recent produe- 



86 



MINING AND SCIENTIFIC PRESS 



July is, 1914 



tion statistics of the United States Geological Survey 
show the production of fuller's earth in 1913 to have 
lii-eii 38.504 tons, valued at $369,750, which is an in- 
erease of about $65,000 over the preceding year. 'Die 
imports of fuller's earth during the year totaled 
1,001. 

r PllE Committee on Mines and Mining, to whom was 
-*• referred the bill to provide for a commission to 
codify and suggest amendments to the general mining 
laws, has reported it back to the House of Representa- 
tives with the recommendation that the proposed code 
shall not deal with Lands containing deposits of coal, 

oil, gas. phosphates, or soluble potassium salts, and that 
the bill be passed as amended. This amendment was 
suggested for the reason that the deposits named occupy 
a somewhat different status from the other minerals with 

res] t to format ion. methods of mining, and their use. 

The Department of the Interior has recommended legis- 
lation peculiarly adapted to the development and dis- 
position of coal, oil, gas, phosphates, and potassium, 
which hills are now pending before the Senate and 
If. us,- committees on public lands. In the event of this 

hill being passed, which seems highly probable, there 
will undoubtedly '"■ a commission created to make a 
thorough and exhaustive investigation of the subject and 
report its conclusions to Congress. The time is oppor- 
tune for a discussion of the proposed revision, and we 
therefore take pleasure in presenting a discussion of the 
subject by Mr. P. R. Ingalsbe under the title of 'The 
Mining Law — Proposed Revision,' together with an- 
other contribution written by Mr. Clarence K. Colvin. 

Both recognize the importance of the subject, ami their 
different viewpoints are both interesting and timely. 

We trust that a complete discussion id' the subject will 

bring out the opinions of those interested so that re- 
vision may In- undetraken with full knowledge. 



'X4IE American Petroleum Society, which was organ- 
•■■ ized to promote the science of petroleum technology, 
gives promise of becoming a most useful organization, 
and it is to be hoped that the membership campaign 
now being conducted will meet with the hearty response 
of those interested either directly or indirectly in the 
production and use of petroleum, bitumen, and gas. 
Tin importance of the oil and gas industry is evidenced 
by the value of the production in the United States last 
year, which amounted to over +250,000,000, approxi- 
mately 71 per cent of the world's supply. In 1907 the 
technologic branch of the United States Geological 

Survey, acting under authorization of Congress, under- 
took a comprehensive study of petroleum and its prod- 
ucts, which woi-k was and is being continued by the 

Bureau of .Mines. Tt became evident to those in charge 

of the work that without the cooperation of the many 

men engaged in lie- industry tuid the funding of their 
knowledge for the advancement of the industry, this 

study would Lose much of its effectiveness. The object 
of the Society is to consider, primarily, subjects relating 



to the science and technology of petroleum and its 

products, with the purpose of investigating those phases 
of the subject which are of direct and pertinent value 
to the industry, to join the wisdom of the scientist to 

the knowledge of the practical oil man for the advance- 
ment of the industry, in that the leading petroleum 
associations of the United states plan to make tin 
ciety the arbiter of standards for the trade, it at once 
L'ains a prestige which other new societies of the other 
industries might only hope to attain after years 
ganization. At the present time there are not only a 
dumber of individuals but there are about -14 different 
committees in 4:! different societies in the United States 
which are investigating subjects pertaining to petroleum 
with no forum available for the general discussion of 
this subject. That there is a need for this society is ap- 
parent and its success as an organization should be 
assured. The first annual meeting will be held in New 
Orleans on October 15, 1914. and the second in San 
Francisco from I Ictober 25 to 30, 1915, where the Society 
will act as host at a World's Petroleum Congress. 



LEAD POISONING 



Lead poisoning as contracted by employees of the 

smelters .-in, I refineries in the United states has recently 

been the subject of investigation by the Department of 
Labor. While the results of the investigation arc largely 
statistical, they show conditions at the works toward 
correction of which real effort should be made. At the 
1!> plants, employing about 7401) men, investigated in 
the United States there were no less than 1769 cases of 
lead |M>is.ining during the year 1912. From the cases 
reported it is seen that the exceedingly high figure of 
22 per cent of the employees at these plants have be n 
afflicted with lead poisoning. The hospital records at 
nine plants showed that 5 per cent of the employees 
wet.- afflicted with this malady. 

Of the plants investigated there were three which 
used blast-furnaces and large Hue systems. While these 
plants employed only about II Mil I. or 13.5 per cent, of the 
total 7400 employees involved in the investigation, there 
wen- 387 cases of poisoning reported at these smelters. 
The figures presented may be. ami probably are. in some 
instances exaggerated, as there is a tendency among 
Workmen to attribute all of their ills to their vocation, 
regardless of origin, but it cannot be denied that there 
is an unnecessarily high percentage of men poisoned and 
a stronger effort toward reducing the prevalence of this 
disease should be made. 

Lead poisoning became a very serious problem with 
the Austrian ore hearth workers in 1889, when there 
were 14 eases of lead colic among 61 men at one smelter. 
A change in working conditions whereby the hours of 
labor were reduced, four men working alternately in 
pairs for two hours at a time during each 12-hour shift 
and having rest periods of 24 hours between, resulted in 
such improvement that in 1902 and 190:! not a single 
ease was recorded among the 4:i men employed at the 



J.ilv 1-v l''U 



MIMV. \M> S< II Mil h l-l 






ii ni 1!>12 

i i mill 

I mi} condii 

dating 
I a marked improvi 

Hen 
a mini iinirly 

prevalent mill tin- iiianageiuenl undertook investigation 
and correction of existing conditions which has 
li.nlly eliminnted tl In addition to reducing 

siialiiM- fume ami dual to the ininimnm, the Company 
made it a rule, and this is important, that every man 
wash before eating. 

In order to prevent lead poisoning, ration 

of the null in iis essential as is modern construction with 
every possible means nting dust and fume, and 

adequate sanitary appliances. Moat operators agree 

tliat it is one tiling to provide sanitary facilities for tin- 
men in the way of change rooms, wash rooms, dust-free 
lunch rooms, respirators, and the like, and it is another 
the men to take advantage nf these facilities. In 
the majority of cases the laborer is las, and the onlj 
remedy is a rule making violation of sanitary regulation 
eanse for dismissal. The matter is largely one of habit, 

and when the men see results of these regulations in the 

form of a decreased number of eases of lead colic they 

will realize their value. 



SULPHUR PRODUCTION 



One of the curious things about mining is that while 
tin- production of certain mineral substances is gener- 
ally regarded by everyone as the application of that 
ancient art, the exploitation and extraction of certain 
other substances, no less truly mineral, is scarcely con- 
sidered, even by the profession, as being really mining. 
Boughly speaking, the iliu'^intr of metallic mineral out 
of the ground is true mining: the digging of a non- 
metallic mineral (excepting coal) is something else. 
Conversely, if a substance is desired for its metal con- 
tent, its digging is mining; if a non-metallic constitu- 
ent is the object of the quest, its extraction from the 
ground usually fails to rise above the level of quarry- 
ing. Possibly oie- reason why quarrying is considered 
less dignified than mining is that a 'porphyry copper' 
is operated by a highly paid and efficient staff, while 
a quarry struggles along with ordinary laborers, paid 
about $2 per day. under the direction of a $250 per 
month superintendent, who nevertheless manages to 
keep operating costs down. Similarly, the small size 
of the producing units may be the reason why the 
digging of the 350,000 tons of pyrite each year pro- 
duced in this country for its sulphur content does Q01 
usually come to mind in a hasty review of the mining 
industry of this country. The production of sulphur, 
whether from ore containing the elemental substance, 
from barren pyrite, or from the copper-bearing pyrite 



i to the i ttic ehaml 

Tlo 

I the 

politicians the while, thai it 

annual return from the sulphur which is ben,- utilised. 

The val >f the sulphur production of the I nited 

• a estimated h.\ Mr. v - 

l'hah-n. of the United S 

B e|,„ f difficulty BboUl sulphur is that 

ihundantly in plaoes where nobodj wai 

and is generally absent from those places when 

required, since it commands only a comparatively 
low price, the production of Bulphur-bearing material 
involves business considerations rather than mining 
technology. Thus, for example, pyrite is imported 

from Spain to points ,,n tin- Atlantic seaboard, Bince 

the railway freight in this country, with additional 

handling charges, makes the domestic pyrite cost more 
in the vicinity of the principal ports than imported 
material. Sulphur from Sicily used to be imported 
into the United States in considerable quantities, but 

of t snl years the Louisiana sulphur has been pro- 

d d and sold so cheaply that Italian imports only 

amounted to 125 tons of sulphur in 1913, ; ording to 

Mr. 1'halen. Two-thirds of the total sulphur imported 
comes from Japan, most of it entering at Portland and 
Hawaii, though some of it enters San Francisco in 
competition with the copper-bearing pyrite of Califor- 
nia. The Hall process, in course of development at 
Coram, is likely to cause a change in the California 
situation, but can scarcely affect other points; for 
freights will not permit the California sulphur to com- 
pete with the Louisiana and Japan product at any 
L'reat distance from its point of origin. 

The Louisiana prod rs are now carrying the war 

into Africa, and competing with Italian sulphur on its 
own ground. The principal American company has 

established a distribution depot in Rotterdam and has 
chartered steamers for carrying its product. The Sicil- 
ian producers are rather dejected, as working costs 
tlere go up as the mines go down. Wages go higher, 
because of the emigration of laborers to America, 
while the Italian government has restricted tin- grant- 
ing of concessions. Some of the deposits have been 
worked out, and corresponding new discoveries have 

not 1 n made, so that there is every reason to believe 

that the Sicilian output will steadily decline. The in- 
creasing production of sulphuric acid by th pper 

smelters is also a factor in the sulphur situation, though 
probably not a disturbing one; for the smelters are 
commonly so situated that they cannot compete to ad- 
vantage with the present makers of acid on account 
of freight rates. The smelters will, in many instances, 
have to create a market for their acid. and. since its 
output of sulphuric acid is often called the indi of 
a country's civilization, progress will thus be made. 



88 



MINING AND SCIEN I IFIC PRESS 



Julv 18. r.H4 




i:\l vnw.'i iin PROPERTY 01 mm PORCVPItfg 



C@im{tiiira@iui§ IDasgimiit&ibiioTa ait th® P@ir€Mpiiffi(g Crowim Mnmi@§ 



By IYIAURICZ SUIYIHIERHAY£S 



The Porcupine Crown Mines is situated on the T. & 

N 0. Ry., 250 miles fr North Bay in the Porcupine 

mining district, Ontario, Canada, and one-half mile from 
the town of Timmins. In February, 1913, a • 
gamating mill was buill and pul into commission pri- 
marily for the purpose of testing the mine sampling and 
also for producing revenue. 

The small mill was operated until November 15 of 
the same year during which time experiments made 
(both in the laboratory with cyanide tests and the mill 
mi a larger working scale] indicated thai the contin- 
uous decantation process would be i h<- must economical. 
This was erected and running by November 1~> with- 
out interfering in any way with the existing mill, which 
was made a unit of the new one. the amalgamating plates 
during the erection of the larger mill being placed in a 
temporary building which was later removed. 

The factors determining the choice of the process 
were: 1 short time factor for solution of gold: (2 
)nw solution strength required i I 25 lb. 3 rap 
tlement of pulp; [4 low costs of installation and opera- 
tion (5 small quantity of water required. 

The ore is a hard quartz containing approximately 
V, of iron pyrite. The grade of mill-run varies from 
$15 to $30 per ton. Some of the gold is coarse, bul gen- 
erally ii is fine and freely disseminated in the quartz 
gangui often associated with the pyrite. With ti 
proper from 10 to 20' I of country rock is sent to the mill. 

( Irurhing and Eli \ iting 

The on is delivered in <;u.s from the shaft house to 

the mill, where it is weighed and dumped upon a grizzly 

I 1 ' -in. The oversize falls into an ore-pocket of 

60 tons capacity and feeds a No. 3 Chalmers & Williams 



bronze ball gyratorj crusher set at liA-iu. The dis- 
charge Erom the crusher tuns the undersize from the 
grizzly and feeds a vertical bell elevator carrying 120 
buckets 9 by 9 in. traveling 225 ft. per minute; this de- 
livers the ore to a short conveyor bell 16 in. wide travel- 

200 ft. per minute, which distributes tl re in 

ili.' bin equally to each battery of ten stamps. The ore 
bin lias a capacity of ->>'> tons. 

The ore is fed to twenty 1050-lb. gravity stamps by 
standard Challenge feeders. The stamps drop 102 times 
per minute. Th height of drop is 7% in. and height 

of discharge 4 in. A stamp duty is obtained of 8.8 tons 

for the -'--mesh screens. The battery posts are 12 by 
26 in. for the side posts and 20 by 26 in. for the king 

posts. The top girt for the 2n stamps is framed in one 

piece giving the - (| stamp structure considerable extra 

support. Fairlie belt tighteners are used. The mortars 
are standard narrow type tor quick discharge and eoarse 
crushing. 

Two and one-hall' and Ii mesh set ns are used on the 

batteries and varied to suit the mill requirements. The 
2> q-mesh has openings 0.25 in., and the 6-mesh 1ms open- 
ings 0.111 inch. 

Classifier and Tube-Mill Closed Circuit 

The stamps discharge to two Dorr classifiers, a duplex 
in circuit with a 5 by 16-ft. tube-mill and a simplex in 
circuil with the 4 by 20-ft. tube-mill. The 5 by 16-ft 
makes 29 r.p.m. and the 4 by 20-ft. 31 r.p.m. The 
elevation of the elassifiers is sueh that the discharge 
from the tube-mills will flow by gravity back to the 
classifiers. In the ease of the 5 by 16-ft. tube-mill, this 

was accomplished by adding 4 ft. to the standard length 

of classifier, the oversize being fed to the scoop with a 



I* l'-l t 



MIMV. WD >. II Mil | ( PR 







• ROM \ MINI S c IIMI'IM. 1 IM1II l>. 



solution jet regulated to give ■>' , moisture. With the 
4 by 20-ft. tube-mill the desired result was obtained b,> 
increasing the radius of the scoop, the one used having 
» radius of 52 inches. 

Twenty-fonr feel above i )>.■ tube-mill floor are placed 
two amalgamating plates, 9 by •"> ft, receiving the Bliine 
discharged from the tube-mills, which is elevated by a 
triplex plunger pump and suitably diluted. The slop,' 
of the plates is 11/4 in, per foot. The plunger pump has 
ball valves, the seats of which in time wear elliptical in 
shape, necessitating the use of a small amount of air to 
assist the pump, and later the valve seats must be taken 
out and reseated. 

The plates have now been in us,- sis months withoul 
material damage. The amalgam forms on the plates as 
a hard skin, and is removed with a scraper, care being 
taken not to get down to the copper. It is impossible 
to keep the plates soft and in good condition for catch- 
ing fine gold, as practised in modern amalgamating 
mills. Mini this is nol attempted. It does, however, pick 
up the heavy coarse gold, for which purpose only it is 
required. About 30$ of the total recovery is made from 
these plates. 

( 'Viximim: 

The cyanide plant essentially consists of five 30 by 
12-t't. Dorr thickeners, working in series, with an agi- 
tator, 16 by 16 ft., between thickeners No. 1 and No. 2. 
together with the various pumping and precipitating 
apparatus. The pulp is delivered to a No. 1 thickener 
at a ratio of 5.25 tons solution to 1 ton solids. The over 
flow from tins tank is the 'pregnant solution.' All of 
this solution is not necessarily precipitated. If the 
overflow is of lower grade than required, a portion is 
allowed to by-pass to the pump returning the solution 
from No. 2 thickener to the battery storage, which is 
allowed to build up in value to a limited amount (see 
tabulation following). 

The underflow or thickened pulp is directly eon- 



bj l in. piping to the Bticti ml of two I in. 

diaphram pumps. These are Bel :'_• ft. above the level 
i solution in the tank. These pumps will handle 
pulp containing as low as 25$ moisture over snort 
periods of time. Bach pump has a sufficient capacity to 
handle the maximum output of the mill, thus leaving 
one pump in reserve. There are two speeds and three 
lengths of stroke to vary the volume pumped, giving 
ample variation to accommodate the mill tonnage. 

The thick pulp 35$ moisture from No. 1 flows from 

the diaphram pump by gravity to the agitator, Here 
the moisture is raised by adding barren solution until 
ante has reached 60' , . « Ine third of the cyanide 
is added at this point, the balance at the tube-mill feed. 
The pulp is discharged from the agitator continuouslj 
to thickener No. 2. Then from this point to thickeners 
No. '■> and No. I the decantation is continuous, each tank 

having a 2-ft. elevation above the next pr< Ine-'. giving 

the overflows a gravity flow from No. 5 to No. 2. 

The barren solution from the precipitating presses is 
delivered to No, -1. a small portion going to the agitator. 
Water only is added to No. 5 equal in amount to the 
solution leaving with the thick pulp as tailing, thus 
maintaining a constant volume in the circuit. No. 5 is 
discharged through a spigot, with an average moisture 

content of oil',' only. The diaphram pumps in each case 

raisi the thick pulp at 35$ moisture from the various 

tanks as already described for No. 1. The solution over- 
flows pass by gravity from No. 5 to No. 2. while the pulp 
flows in the opposite direction from No. 2 to No. 5. The 
value of the barren solution from the precipitating 

presses varies from 1 to 3c. per ton solution. The av- 
erage assay values of the pulp and solutions in the va- 
rious tanks during the months of .March and April are 
shown in the tallies. 

Phi i 1111 \tiox 

Zinc dust is used as the precipitant and is fed to the 
suction of an Aldrich triplex pump by a Merrill zinc- 



90 



MINING AND SCIENTIFIC PRESS 



July 18, 1914 



dust feeder. The pump ruses the emulsified 'lust and 
solution io two 52-in. Merrill precipitating presses. 
These presses are used alternately for periods of 1"> days, 
when regular clean-ups are made. By this system all 
delays are obviated and a press is in reserve. One-sixth 
of a pound of zinc dust per ton of solution has been 
found sufficient The barren solution carrying 1 to 3c. 
per ton Mows by gravity to No. 4 thickener and the 
agitator. The grade of precipitate obtained was $27 50 



subjecl to a thorough washing with hot water, which is 

run to wast,.. The time for filtering and washing is 
aboul 12 hours. 

After thoroughly draining and partly drying, the 
treated precipitate is dropped into a t> by 11-t't. steam 
dryer and the moisture reduced to about 10' , . The pre- 
cipitate is mixed with the required amount of flux and 
briquettad in a G-rath Little Giant brick press. Drying. 
fluxing, and briquetting take about 15 hours. The 




A M.I; 01 THE MILL, SHOWING STAMPS ANH TUBE-MILLS. 



per pouud from pregnant solution averaging $2.87 per 
ton. 

Repining 

process in brief consists in acid treating the pre- 
cipitate with sulphuric acid, filtering, washing, drying, 
fluxing, and briquetting the resultant material. This is 

smelted in a Rockwell furnace. 

For acid treating a wooden Lead-lined tank. 4 by fi ft., 
with a mechanical stirrer is used. The ratio of 
aeid to water is aimed to be kept al l to 5, the ani 

I required is three-quarters to one times the weight 
of dry precipitate treated. The time allotted to aeid 

3 hours. The sludge from the aeid tank 

is run into a Perrin press imd the strong filtrate of 
ZnSO . etc., allowed to run into a wooden tank to settle 
until the next clean-up. The mat. -rial in the press is 



briquetting machine is made by the Illinois Construction 
Co. ami will handle, when operated at maximum ca- 
pacity, 960 lh. per hour of mixed precipitate and flux. 

The briquettes are charged to a double chambered No. 
2 Rockwell furnace using crude oi] as fuel. About 8 
hours are allowed for the charge to melt down before 
pouring. The resulting bullion averages about 750 tine 
in gold and 90 in silver or 840 in precious metals. The 
slag carries $400. to $500 per ton. Some matte is pro- 
duced which retains a small amount of gold and silver. 

The following are the arid and fluxes used per 100 

lb. precipitate: pounds. 

H.90, 75 to ] 00 

After acid i r .;. on at 

Borax glass 11.5 

Soda • 5.7 

Silica 3.0 



•M I 



MINIS'. \\i> m || \ i || |, 



PRI SS 

I 



"I 



■ H VI. ■MH 






| 

it. m < 

i 

it y< i i 

■...Us 

eflnlOR charsM 



I 

tt"> Bne ices prod 



' 






1 








;i 








" MM 




0.0410 



- Ore 

*■ Pulp or Slime 

- '.\v<7 tion or HtWV/T 

'- Pnectp/fatt 



I" lliiv 



Power 

Power for the mill is furnished by the Northern 
I a Power I'm. from it-, hydro-electric plants on the 

-'ami river. The high-tension current is delivered 
property at approximately 12,000 volts, where it 
iped down ;.i -"»-"•< » u>lts. and .-it this pressure is 
ghoul the mill for motors. Lighting transfot 
lis down further to lln volts. Power is paid for 
on !• maximum 3-minute peak obtained during the month 
;it the rate oi >' I per horse-power year. 

The mill as above described has been in operation G 
months, ;i sufficient length of time for any erroi 

features in the pi >< to develop indicating its 

adaptability or otherwise to the ore for which it was 

designed, During this time many further experiments "~i_~J^'_. ._.+TJ~" ; kcm 

I* 





FLOW-SHEET HI I'liRCtl'TNK ( RIIWN MILL. 



92 



MINING AND SCIENTIFIC PRESS 



•Inlv 18. i:»14 



have been made, more especially toward making ;i more 
complete extraction without further grinding. As may 
be Been by a study of the attached assay averages, a 
further benefit may be obtained by increasing the time 
for agitation, some metal continuing to be dissolved i'i 
the thickeners following the agitator. In this connec- 
tion it may be stated thai a second agitator is now in 

pr ss of erection. Re-cyaaiding the washed tailing 

pulp with the working solutron for 12 hours indi 
that nut more than about 3c. additional can !»• expected 
to be i overed without finer grinding. 



dt' March and April. Tins,- an- the labor, stores, and 
power costs only, and do not include proportion of 
assaying, administration, depreciation, etc., which are 

normal for a property of tins size, our total operating 
for the first quarter of 1!'14 being $(i.7.">. including 
all overhead eharges. 

MYSCELLANEOl'S I 'VI \ 

Per tun t'nitcost 

milled, II). per lb. 

Consumption of KCN ".74 

Consumption of Zn 0.98 0.065 

i lonsumptlon of CaO 3.50 




INTEBIOB 01 iviMln imam OF PORCUPINE CBOWD Mil. I.. 



There has been milled and eyanided 18,460 tons of ore 
with the plant described. The extraction has been be- 
tween 96 and 97. The loss in dissolved metal content in 
the tailing for March and April was as follows: 

March. April. 

Value of solution per ton $0,120 $0,100 

Value of solution loss per ton of ore milled. . 0.052 0.043 

The above result compares most favorably with any 
class of filter which might be used on a pulp such as 
that here treated. The pulp as discharged from No. 5 
thickener, containing an average moisture content of only 
30%, is in an ideal condition^for sampling, and while 
this lias been done by band up to the present time an 
automatic sampler will be installed in the near future. 

Attached hereto are the milling costs for the months 



MlLl-IM. Costs FOB MONTHS "I MARCH AND APRIL 1914 

Miiiin 1914 I tons milled. 4420) 







Ma 






Cost 




Wages. 


terial. 


Power. 


Total. 


per ion. 


Crushing 


$333.89 


$61.60 


$87.57 


$483.06 


$0.11 


Stamps 


834.23 


141.26 


137.61 


613.10 


0.14 


Tube-mills .... 


188.56 


s::n.2l 




1,607.40 




Amalgamation 


195.27 


142.56 






0.08 


Solutions 


. 216.92 


331.73 


83.40 


632.05 


0.14 


Thickeners . . . 


219.48 


4.31 


104.25 


328.04 


0.07 


Precipitation . 


132.68 


377.88 




510.56 


0.12 


Clarifying .... 


150.40 


1.S3 




152.23 


0.03 


Agitation 


115.81 






115.81 


0.03 


Refining 


267.26 


108.88 


41.TO 


417.83 


0.10 


Mktg. bullion.. 




144.8! 




144.83 


0.03 



Totals 



$2,154.49 $2,154.09 Jl.o34.lC. $5,342.74 $1.21 






MI\|V. AM> m II Mil |. I'KI SS 








1 












■ 




1 












































































Thlck< ii. n 












■ Ion 
























Reflmoj 










i,i 



Total* 



$4,171.11 






nril Dll miliar 

lii f 1 1 « - di avripliou 
thai t h«- Mm, I t. 
sampli principle can 

hi liraca, iiii.I ii the nmple to be t • — t « - . I is pu) through 
iiml through a samp! until the required weigh) 

of -a • 40-meali sand is obtained, the ramill will Ih' 
accurate. The object is to keep the physical character 

md m1 w ji \ > the Mini Pai tieli 
derived from the wel cruabing "t rooks, and thi 



PORCUPINE CROWN CYANIDH Mll.i. AVERAGES run ICARCR 1914 (141 toni per d 

Thick, l. Agitator. Thick.:'. Thick. S. Thick. 4. Thick.:,. Battery. Storagt Bol. pptd. 

■■Id $2.43 fn.ss $u.::t $11.17 $OJU $'>.:," 11.88 618 toni 












". ss 









I 'ml i- I 

pulp to sol. 1111- 

i "--- I to 1.81 1 to 0.614 I to 0.614 I to 0.614 ltoO.540 

Ratio pulp lo solution 

lto6.3S0 ItoUi t to 5.800 1 to 4.1 I to 4.600 L to 1.100 

t ■ 1 1 1 i > to 

■ lltUKC Wll. 1111- 

d.-rilow 88toS7 48to67 62 to 38 62 to 38 62 to 38 66 to 36 

CYANIDE Mil. I. AVERAGES KOIi APRIL 1914 (120 tons per day) 



Av. beads, $2.87. 

Av lulls. |0.04. 



Thick. 1. Acitator. Thick. 2 

lived sold $3.17 *i.74 $0.80 

riiilisnolv.il Kold ... L81 1.06 0.82 
Ratio inilp to sol. un- 

dirtlow Ito0.562 1 to 1.37 ltoO.64 

Ratio pulp to solution 

' 1 to 6.260 1 to 1.40 1 to j.25 1 to 4.41 

■tage pulp to 
percentage sol. un- 
derflow t',4 to 3fi 42 to jS 66 i 



Thick. 3. Thick. 4. Thick. 5. Battery. Storage. Sol. pptd. 
10.26 $ii.n |0.10 |0.46 |1.87 187 tons dally. 

0.60 0.68 Av. heads. $2.33. 

Av. tails. $0.08. 
1 to 0.54 l(o0.54 1 to 0.43 1 to 5.25 

1 lo 4.41 1 to 0.97 



65 to 35 65 to 35 69 to 31 16 to 84 



TiuiIbxs=Malll Practice sumdl A© 



By W. B. BLYTH 

•A simple and accurate method for comparing the 
hardness of ore sand, judged from a tube-milling stand- 
point, has resulted from experiments which I have con- 
ducted. The principle of crushing in a tube-mill is 
quite different from thai employed in the grinding-pau 
or the stamp-mill, and whal might be considered as ex- 

cellent crushing material for machine may prove 

quite unsuitable for another. This is illustrated by 
the fact that the most easily ground sand shown in the 
subjoined table is derived from an ore which in bat- 
tery parlance is the 'toughest' in the series. Institute. 

of alining and Metallurgy sci ns are used because they 

an- the only screens available whose aperture diameter 
can be guaranteed for a given mesh. 

Stadler'sf excellent method for computing grinding 

efficiencies is used to illustrate the res| live hardness 

of the ores test,-,!, hut the regrind factor is only an 

•Abstract from Monthly Journal of the Chamber of Mines 
of YAV stern Australia. 

i-IYan*. i. M. M. xix.. p. 471. 



rived from dry crushing in rock-breakers are always 
angular, but the particles derived from crushing rock 
in ball-mills or disc pulverizers are rounded. Naturally, 
the grinding result mi a sample of sand will vary 
greatly, according as to whether the sand particles are 
round or angular; and this is necessary to prepare 
the sand by either of the processes above described. The 
capacity of tube-mills varies a great deal on different 
ores, and only experiment will indicate the work that 
will be performed in any given ease. 

In designing new plants, the duty of a grinding niu- 

ehine causes the designing engineer a lot of anxiety, 
as the expected value of the tailing is often strictly 
proportionate to the fineness to which the ore is ground. 

Al present, the duty on an untested Ore can only In- 
guessed from its appearance, which is often similar. A 
standard preliminary small-scale test from which Un- 
capacity of a tuhe-inill can be accurately estimated 
Would lie of vain,-, and the suggested scheme endeavors 

tn supply that want. The attached table of hardness 
gives the tabulated results of testing sand from 15 
mines, and also that derived from crushing an average 
sample of Danish Hints. Unfortunately, it is quite 

impossible to get correct tube-mill crushing data in each 
ease. I do not have sufficient faith in any method 
yet propounded for comparing grinding efficiencies I i 



94 



MINING AND SCIENTIFIC PRESS 



July 18. 1914 



attempt a comparison from the grinding results of tube- 
mills working under different conditions. Successful 
comparison can only be attempted when the tube-mills 
are working under similar conditions with regard to 

Np I. pebble load, grade and tonnage of feed, etc. In 

only two cases in the subjoined table has it been pos- 
sible accurately to compare the work done by similar 
sized tube-mills in the respective plants. In the case 
of No. •"> mine, whose sand has a regrind factor of 354.5, 
a tube-mill has a 30% greater capacity than on the 
sand from No. 11 mine with a regrind factor of 266.3. 

Necessity op Having t Standard 

'Pests on tube-mills working under different conditions 
mi cither mines indicate thai this ratio will remain about 

the Same, but these tests eailllllt lie accepted as reli- 
able. Aii elaborated table of this nature would allow 
operators, working in different parts of the world, ac- 
curately tn compare grinding efficiencies under similar 
conditions. Some standard should be established, and 
this is introduced as a test which can be made by any 
operator who '-an secure a set of J. M. M. screens and 
a 5-gal. glazed earthenware barrel. A study of tech- 
nical literature dealing with grinding capacities and 
grinding efficiencies illustrates the fallacy of generaliza- 
tion. It is quite useless comparing capacities and effi- 
ciencies nf grinding machines unless the ores operated 
on can lie accurately compared. 



to 2 in. diameter, and 16 lb. of water, is introduced 
into a 5-gal. glazed earthenware barrel and ground for 
90 minutes at 60 r.p.m. A sample of the ground prod- 
uct is then taken, dried, and graded with a mechan- 
ical grader 40, 60, 100, and 150-mesh I. M. M. screens. 
The value of the grading in energy units is then cal- 
culated by Stadler's method, and this amount, minus 
the original value in energy units, represents the re- 
grinding factor in the table. 

Example 



- Feed - 



- Tailing - 

2 



- 
p 



+ 40 


17.5 X100 =1750 


16.8 




> IT..", 


=294.0 


.. ,;u 




29.2 




X20.0 


=584.0 


+100 




16.4 




X 22.0 


=360.8 


+ 150 




6.6 




X24.0 


=158.4 


—150 


ll 


31.0 




X26.5 


=821.6 


Tot. 


. 221s. 7 














Total 


energy units, tailing. = 


=2218.7. 


Total energy units, 


teed =1 


750. Difference, 468.7 = 


regrinding 


factor. 





A table of hardness based on grinding capacity of 
tube-mills run under the same conditions, with regrind- 



/ •;:// r. 


/ 




(4-75- 


£ 


V 




Jt-68 7 


'/.'■( ':. 3 






J-M-5 


<,.:■■: + 


' !■'■' . ■ ' ■'.'-' 




14-20 


■'5 




aaaiak 




6, " ' v,fvi 




304- 
50-4 








i _.; ■ „ : fi :: .,,, . 


', |28l : 


t- 


y 


■10 


im* 




aIS&3 


13; 
14* 


|2fi4- 
■\Z6IS 
1*51-8 


>5 


Uig-l 


,16 |l3o-4. 







TABLE OK HARDNESS. BASED OS GRINDING CAPACITY OF TUBE-HELLS RUN UNDER THE SAME CONDITIONS. RE- 
GKINDINi, FACTORS IN TERMS OF ENERGY UNITS. THE HIGHER THE REl.RINIUNd FACTOR. THE GREATER 
THE I M'Uin OF THE TUBE-MILL. REFERENCE TO NUMBERS: 



1. Accumulated sand from crushing No. 2 ore. 

2. Quartz and schist in highly-sheared dolerite. 

3. Sand feed to tube-mills (Broken Hill). 

4. Sand feed to grinding pans (Broken Hill). 

5. Sulpho-telluride ore (Kalgoorlie). 

C. Return raff screen to rolls (Queensland copper ore). 

7. Queensland sulphide copper ore. 

S. Blue quartz and greenstone (Murchison, \V. A.). 



9. Concentrated ironstone sand (East Murchison. W. A.). 

10. Concentrated jasper sand (Murchison. W. A.). 

11. Concentrated ironstone sand (Murchison, W. A.). 

12. Queensland sulphide copper ore. 

13. Concentrated ironstone sand and garnets (Yilgarn, W.A.). 

14. Clean white brittle quartz (Kalgoorlie). 

15. Concentrated jasper sand (Murchison. \V. A.). 

16. Danish flints (tube-mill pebbles). 



The method of computing hardness is as follows: A 
sample of ore to be tested (wet crushed) is graded (I. 
M. M. screens) until 8 lb. of -20 +40 sand is obtained. 
A charge consisting of 8 lb. of sand. 8 lb. of flint. 1 



ing factors iu terms of energy units, is shown in the 
diagram above. 

The higher the regrinding factor the greater will be 
the capacity of the tube-mill. 






MIM\i. \ND SI II Mil I. I'KI S3 






©mi ftlhic CoMbr&SB Comiftacft WnftMim fdhe Suaaini 
Mkikig Coimcestibini, Korea 



a. o. K means 



•'I'll, general location of the Suan mining diatriot, 

it mi central Korea, about 66 nilea eaat-aonth- 

• tii.- city of Pyeng Van.;. Korea. The Suan eon- 

i tj b) lixt) Korean It, <>r mi 



The general geologic feature* "t the diatriol mapped 
caudal of a aeriea of asdimentary formationi in 
traded by » granite batholith. Tliis granite in com- 
ing np through tl ater pari <>i the earth baa op- 




area of about two hundred and sixty square miles. 
The area mapped in detail in the present survey is 
in the shape of an elliptical ring, shown by the heavy 
line on the map, averaging three-fourths of a mile 
wide and about twenty-five miles in circumference. 

•Reprinted by permission from geological report made for 
Uv Suan llining Company. 



lifted and pushed aside the overlying and surround- 
ing rocks with tremendous force. Erosion has bared 
the mass, showing a rim of upturned edges of the 
sedimentary rocks around the granite. In the imme- 
diate vicinity of the granite, the sediments have been 
changed — metamorphosed — to schists, marbles, and 
other metamorphic aggregates. 



96 



MINING AND SCIENTIFIC PRESS 



.luiv is, nn-i 



The granite core forms the highest pari of the eon- 
cession, and hence the drainage lines all go outward 
roughly like the spokes of a wheel. Where the streams 
cross the contact between the granite and the sedi- 
mentary rocks, it' there is gold present at the con- 
tact, they carry the metal for greater or less dis- 
9 down from the contact over the outer rocks 
whose upturned edges often form excellent natural 
riffles for catching the gold. The principal streams 
in the district are the Nam Tai Tong Kong, which 
Hows westward along and near the north edge of the 
concession, the stream which flows northward from 
near Tul Mi Chung through Pai Mi Chang, about a 
third of the way from the west side of the conces- 
sion, and the stream which flows eastward from Suktari 
to Oo Kang, just inside of the north edge of the con- 
cession. 

Extent of the Intrusion 

The general shape of the main intrusion is an el- 
lipse, with its long axis northwest and southeast, about 
eight miles long, and the short axis about five miles 
long. The sides or contact of the main granite in 
general dip away from the centre of the mass. The 
angle of dip varies from about 30° to vertical. At 
no place have I seen a dip of the contact toward the 
granite, though a local bulge might cause such a con- 
dition to arise in some particular spot. The separate 
areas of granite southeast of Hoi Kol are not sep- 
arate intrusions. The steep granite hill back of the 



Near Nam No! (and one at Tong Ami there were 
noted a few quartz porphyry dikes, very light in color 
and very much fractured into splintery and angular 
blocks. They have no significance in relation to the 
mineralization of the district. They may be connected 
with the Song Hyup granite. 

The rocks of the rtgion as a whole, with i 
tions, are Doubtless Paleozoic in age. I would make 
ss that the Suan slates and the Hoi Kol lime- 
stone approximate the Carboniferous, and that the 
quartzite at Tol Ko Kai marks an unconformity be- 
tween them and lower rocks. The quartzite at Tul 
Mi Chung may be a separate quartzite, but assuming 
that it is the same one, it may be assumed for pres- 
ent purposes to mark an unconformity between the 
Suan slates and the Hoi Kol limestone on the one 
hand, and the Tul Mi Chung and Tong Am limestones 
on the other. 

The fact of the intrusion causes the general struc- 
ture of the surrounding sediments to be a quaquaversal 
one in general ; that is, the sediments all dip away from 
the granite, or outwardly. From about Nam Xol to 
Tul Mi Chung there is a very important exception to 
this rule, however, for the sediments dip toward the 
granite. This anomalous condition has been brought 
about by the great opposition to the Unjinsan uplift 
offered by the Siroo Pong San massif in the western 
part of the concession, which was also very likely be- 
ing uplifted at the same time. The contact along 
this place is about vertical, but the slates dipping 




Fig. 1. 



' ' 5 var, 6r»«'te 

\ - - 
/ * 



Fig. 2. 



outcrop of the ledge at Hoi Kol is almost a similar 
separate outcrop. A cross-section through these areas 
would look as shown in Fig. 1. Erosion on the east 
side of the ridge has reached the granite before the 
sediments on the top of the ridge have been taken 
away. More in particular, the contact at IIol Kol is 
as shown in Fig. 2, where the dotted line indicates 
the continuation of the contact in its approximate posi- 
tion before erosion. I show this in detail here so 
that it may be clear that the conformation (which, it 
must be remembered, is only the horizontal ortho- 
graphic projection of the intersection of the surface 
of the contact and the topographic surface') of the 
contact at Hoi Kol does not indicate that a sharp 
bend or any bend at all may be expected to the south 
in the east workings, but the contrary. 



toward the granite have probably had their east edges 
resorbed by the granite. 

Regarding contact metamorphism, it may be said 
that there is evidence that there was reerystallization 
of the minerals and rearrangement of the elements 
both with and without the help of materials from 
the granite magma. The metamorphism is divided 
into two very distinct stages. In the first were formed 
principally silicates, and in the second were formed 
principally sulphides and the metallic gold-silver alloy. 

The Suan Orebodies 

At the Suan mine at Hoi Kol there are two distinct 
types of ore in two distinct groups of orebodies. I 
shall call these the western and the eastern groups. 
The western group takes in the locally known 'west- 



Jlllj 



MIMV. WD S< II Mil I. I'M 






-r.<ii|. Ink.-, in the lo 

known 'centra 

with both >!•• 'north iplit' ind it- 'south upln." 

*l*ti. ■ rin.-.t of tabular "r lenticular 

rtenaion >n the 

. whieh extendi along the west aide "t 

Hi.- ll"l Kol valley. The l»-t movement on thia hall 

near!} in t li<- dip of the halt The • 
group r more irregular bodies on ■ aeriei 

of interlocking fault aonea which all together make 

up oni one running about parallel to the < • 

tact and at about right anglea i" the weal fault. The 
average movemenl in tins tone waa laal down to the 
aouth at about 80 . probablj a settling of the granite 
in cooling, and the aone aa a whole dipa 60 to BO 
toward the contact in the upper levels, bat seems to 
be about vertieal in the lower levels. The western 
■one dips 55 to 60 to the south. The western aone 
continues out into the granite, while the eastern one 
runs at about parallel to the contact. 

The distinctive minerals of the western '.'roup are 
tetrahedrite and dolomite in addition to the other 
ore and gangue minerals. Sphalerite and galena may 
also belong ni this category. Tetrahedrite and dolo- 
mite are never found in the eastern group. 

It is clear, then, that the two ores have an entirely 
separate origin. The western ore was deposited from 
gold-silver- copper- iron-ainc-aritunony-biamuth-magnes- 
ium bearing solutions working laterally along the fault 
aone tn m the granite into the already somewhat al- 
tered limestone. The calcite in the limestone was the 
mineral most easily oust, -a by the newoomers. Bismuth- 
init,- is leas than in the eastern group, Impregnation 
into the walls did not extend a very great way from 
the principal fault surface. 

In the eastern group, gold-silver-eoppcr-iron-bismuth 
solutions working upward from some source in the 
granite below flowed along the complicated channels 
of the fault /one. As in the eastern ore the calcite 
was most easily replaced, but diopside and phlogopite 
were also replaced. The presence of pyrrhotite as an 
important sulphide in the main east north stope ore 
must be emphasized here, as it has not been recognized 
heretofore. 

The 'J lngub Minerals 

The principal gangue minerals of the western group 
are calcite, dolomite, quartz, diopside, phlogopite, and 
a little garnet. The principal gangue minerals of the 
eastern group are diopside. calcite, garnet, phlogopite, 
an asbestos (probably a fibrous amphibole), tremolite 
<?), wollastonite (?), and a little quartz. 

The eastern group is doubtless associated in origin 
with the miarolitic Hoi Kol granite, and the channels 
deep clown in the earth along which the solutions which 
carried the metals of the eastern group arose, are un- 
doubtedly connected with the 'pipe' of the Hoi Kol 
aranite. which is itself a phase of the magma given 
off after cooling had commenced and after the mass 



of the batliolitli as a whole had I 

V || .i dl ; 

other linn. ral.i, probably including some magnetite, 
along the contact. Then (he pyriti was parti) ■> 
to hematite and the granite to ■ green quite 

unlike the granite in appearanoe, and part ol the 

limestone waa mad< "t .i chalk) appears! The 

present digging msj I"- at a plsee whieh i* on|) the 

bottom of a deposit whieh has all I d eroded away 

leaving the gold for the most part, ..i irs.-. in the 

placers below. 

Till. Tim. A H I IBJ 

The ores at Tang Am are different from all ol the 

others in that they do not owe their origin to the Suan 
granite. Thej are genetically connected with certain 
dikes which also occur at the proa] t These 'likes 

have been highly metalliferous. They have both meta- 
morphoseil the enclosing limestone and have imparted 

to it metal-bearing solutions, from which the sulphides 
have been precipitated. The place is very interesting 
m its occurrence of molybdenum and of cuprite. The 
latter mineral was seen nowhere else on the conces- 
sion, and the former only at Peh Wha. The diorite 
may be an offshoot from the main granite, but the 
indications are that it is not only separate, but much 
older than the granite. Some prospecting should be 
done at this place up the little valley in which is 
the main adit, several hundred feet above the adit. 
At that place copper float may be seen, and there is 
evidence of one of the dikes nearby to the northwest. 

The long directions of the orehodies at Tul Mi Chung 
seem to be from about parallel to about 30° to the 
contact, and to lie along shear or fault zones. They 
are more or less closely associated with the 'Weigall 
granite' and probably bear much the same relation to 
it that the IIol Kol ores bear to the Hoi Kol granite. 
There is very decisive ocular evidence of pnenmato- 
lytic action at Tul Mi Chung; that is. that the circu- 
lation and work of magmatic waters has been very 
active, even altering the 'Weigall granite' to a form 
scarcely recognizable. There seems to have been con- 
siderable secondary concentration, and a critical study 
of the orebodies might give valuable hints as to the 
depth to which the deposit may be expected to go. 
Such a study, to be of great value, should be made 
before the ore on the upper level is stoped out. At 
Peh Wha also there has been an unusual activity of 

tl manations from the granite, but the gold content, 

at least as far as the prospecting to date indicates, 
seems to have been a little low. 

At Sang Dai there are two large masses of so-called 
'garnet-actinolite rock,' which contains also much cal- 
cite and considerable amounts of quartz and epidote 
as important minerals, formed by the metamorphie 
action of the granite. The ores are associated with 
certain aplite dikes whieh are, in part at least, a little 
later than the granite. The mineralogic and meta- 
morphie changes which have taken place at Sang Dai 
are very complex and need not be entered into here. 



•- 



MINING AND SCIENTIFIC PRESS 



July IS. 1914 



Tong Mu Cheh is of interest on account of the 
:;ee of a good deal of asbestic material, and on 
account of the occurrence of considerable amounts of 
ehalcocite which the Koreans mined in olden times. 
The diggings at Moonbowie are in a very impure meta- 
morphosed limestone and hornfels with a great deal 
net rock in the neighborhood. Chemical activ- 
ities originating in the granite do not seem to have 
been very active here. At Myung Tang Morru I saw 
no signs of mineralization. The opening is rather far 
from the contact. At Chan Na Kol the mineralization 
present is probably of the same type as that at Peh 
Wha. and I have already spoken of the area between 
the two. 

Criteria for Guiding Prospecting 

Fr'">m the observations made in the Suan district, 
the following criteria for guiding prospecting have 
been deduced. These criteria are probably not com- 
plete, and other persons might suggest alternative or 
additional ones. 

Leached, oxidized, rusty-looking, and copper- 
stained outcrops (this criterion is. of course, a gen- 
eral one for all districts). (2^ Placers either at or 
below the contact. (3^ Old Korean workings. (4) 
Contact minerals, such as tourmaline, diopside. garnet. 
Evidences on the surface of faulted or sheared 
zones in the rock just outside of the contact. (6) 
Limestone contacts are more likely places than schist 
contacts with the granite. (7 Especial activity of 
masmatic waters, as shown by the degree of intensity 
with which the metamorphic minerals are localized. 
- Evidences of differentiation in the magma, as 
shown by the presence at the contact against the 
granite of small bodies of igneous rock related to the 
granite. 

These criteria are intended to apply only to depos- 
its along the contact. Especial attention is called to 
the importance of the fifth and the eighth ones. The 
last one is the feature which separates Hoi Kol and 
Tul Mi Chung from all the other present openings. 

In outline the geologic history of the region 6 
to have been as follows : First, there was a granite 
or granite-gneiss land area, now the central granite- 
gneiss of the Siroo Pong San and the Tai Chung San 
area, on the west of the concession. This land was 
submerged, and on it were deposited various sediments 
now seen in remnants, as mica schists, folded in the 
Siroo Pong San granite-gneiss. The area was uplifted, 
folded, and eroded. It was again submerged and a 
series of sediments with a thin quartzite at the base 
was laid down. The Tul Mi Chung and Tong Am 
limestones belong to this period. The area again 
emerged from under the sea. was folded, intruded 
by certain igneous rocks, eroded, and submerged a 
third time. Quartzite, the Hoi Kol limestone, the Suan 
slates, and possibly other rocks were deposited. After 
the following uplift, erosion, and intrusion by the 
dolerite. and part erosion, there is a great gap in tb" 



history which would require observations far outside 
of the region to fill. There was probably another s 
of sediments laid down which have now entirely dis- 
appeared from the central part of the earth, 
likely that at the same time there was a doming to 
the west which is now seen as the Siroo Pong San mas- 
sif. With the cooling of the Suan granite sundry 
after actiAas took place, including the appearance of 
the Hoi Kol granite. Tul Mi Chung quartz-- 

which are due the formation of the ore depos- 
its around its border, and the last of which was the 
■f the basalt. The settling of the uth- 

east of the concession while lava poured out over it 
and buried the former topography was the last chap- 
ter. Today the processes of erosion are busily at work 
leveling the mountains for the beginning of another 
cycle. 

General Conclus: - 

To recapitulate the origin of the ores, referring, of 
course, in particular only to those along the contact 
with the Suan granite, one must conceive of the gran- 
ite as being in a molten state or in a liquid state 
somewhat akin to the molten state, in which a large 
amount of superheated water may be thought of as 
acting as an exceedingly powerful solvent. An • 
of potash and alumina having crystallized out as the 
orthoclase phenoerysts. the rest of the substances be- 
gan to crystallize together with the slowly cooled 
magma. When the outer shell of the mass was hard 
it cracked to relieve the tensile stresses set up in it- 
self by its further cooling, and through these cracks 
came parts of the inner unconsolidated magma, and. 
more important for our purposes, the water released 
hy the solidification of the inner parts of the magma. 
Much evidence suggests that this water was alkaline in 
nature and that it bore in solution metallic sulphides 
such as iron, copper, bismuth, etc as well as gold and 
silver in some soluble form. It contained also fluor- 
ine, boron, and silica. It changed gradually in com- 
n. The substances, notably calcite. in the wall- 
rock against the granite precipitated the sulphides and 
the sulphides precipitated the gold and silver . whieh 
the water exchanged for the materials of the wall rock 
and took its new load of non-metallic material away 
with it the process of metasomatism . Finally ero- 
sion bared the whole thing so that man has been able 
. • at the mineralized places, and locally surface 
water has worked a secondary concentration of the 
sulphides while erosion was in progress. Such is the 
history of the ore deposits of the Suan district. The 
Suan district probably offers one of the finest exam- 
ples of contact metamorphic phenomena to be found 
in the whole world. With study and some sood chem- 
ical analyses. I am certain that some of the mooted 
problems of the formation of ore deposits and of con- 
tact phenomena in eenersl would be definitely settled 
for that district at least, and the district could be- 
ss7c odc in the annals of eeolosrv. 



I- 1914 



MIMV. WD S< II Mil I. I'KI SS 







A Comcirete He&d-Fr&me 



Tli. Mo I 
tioal 

nine 
of the Alt 

.M Mining 
Ims a total depth 
of mi n. The 
collar of the shaft 
has an altitude of 

• ft. alxi\e 

leveL The she 

• ••ti-ii by the Alexander at a depth of 

and the main 1m. ist is built "ii this level in a 

statmn < - ut in the foot-wall. The ropes bom tin- drams 

and under deflecting sheaves, then up 

the ladder-way compartment of the shaft and over the 

main sheave wheels near the top of the reinforced oon- 

head-frame, and then return to the cages. 

Owing to the collar of the shaft being on a hillside 




FINISHED HEAD-FRAME AT PERSEVERANCE MINE. 

and also at this elevation a very heavy snowfall being 
experienced during the winter months, a reinforced steel 
and concrete head-frame was designed, in which the 



a, c. r. jachsuh 

sufficient height to 
vide ■ safe margin for over-winding. 
In building tl all Inmbi • 

mriit. and sand .1 up the shaft and 












PLAN OF 111 U'-l KWIl. SHOWING POSITION ul BBXAVEa 

the rock was taken from the hillside nearby and Washed 
before using. A small gasoline mixer was used for 
mixing the Concrete. The mixture was. 1 of cement, 

sand, and 5 of rock. The mixer was placed on the 
hillside near the rock pile at a sufficient elevation so 
that the concrete from the mixer was wheeled along a 
scaffold and dumped into the forms and tamped. The 
reinforcement used consisted of old 12-lb. rails and worn 
hoisting cable. The walls of the head-frame have a 
thickness of 2 ft. 6 in. at the base, and taper to 1 ft. at 
the top. 

After the concrete had set a few days the forms were 
.1 at the back, and a dry wall consisting of large 
rocks was built up to a height of about 25 ft. Loose 
gravel and rock was then sluiced down and placed at the 
back of the head-frame to a depth of about 25 ft., giving 
i; a batter from the head-frame to the hillside, so as to 
take up the heavy snow pressure. 



New PLANT Oil the Government Cold .Mining Areas 
Consolidated mine. Johannesburg, during the first quar- 
ter of 1914 cost $490,000. A 50-drill Fraser & Chalmers 
air-compressor was installed, and good progress was 
made with foundations and buildings of the mill. This 
is to consist of the following: one hundred 2000-lb. 
stumps to crush 50,000 tons of ore per month, ten 6 by 
lli'^-ft. tube-mills, amalgamating plates after the tube- 
mills, three sand-collecting tanks 56 ft. diameter to hold 
7-tO tons each, belt conveyors and Blaisdell distributer 
to fill eight leaching vats 56 ft. diameter, six 19i/ 2 by 
70-ft. slime-collecting tanks, nine 15 by 45-ft. air agi- 
tators, and a Butters filter plant. 



Gypsum Production of the United States in 1913 was 
2,599,508 short tons worth .+6.774.822. compared with 
2,500,757 tons and $6,563,908 in 1912. Gypsum sold 
crude amounted to 46:i.l:)6 tons, of which 85$ was 
used for portland cement. 



1(111 



MINING AND SCIENTIFIC PRESS 



Julv 18, 1!U4 



Tfa® MinME&g Law — Proposed! Reviiskinn 



Br F. R. IHGALSBE 



It Beems almost self-evident, considering the many 
articles on the subject which have recently appeared 
in the milling journals, that thefe is a basis of Eael 
tor some of the criticisms aimed at our federal statutes 
relating to the locating and patenting of mining claims 
on the public domain. I believe that the law is good 
in the main, and in the discussion which follows cer- 
tain changes are proposed, none of which, however, 
would conflict seriously with the basic principles upon 
which our law was written. For instance, I believe that 
the discovery requirement is basically sound and an 
annual amount of assessment work is consistent with 
the proper development and disposal of our public min- 
eral lands, for it is only by development that ground 
can be classed as mineral or non-mineral. To do away 
with the discovery requirement would mean either one 
of two things: the Government would be confronted 
with the necessity of classifying all its mineral lands 
and alienating them from all other forms of entry, which 
would be an immense task. and. on the face of it. im- 
possible; or it would mean that a leasing system must 
be worked out which would provide for the reversion 
of such lands to the Government as were shown upon 
exploration or abandonment to be non-mineral bearing. 
It seems unlikely that the mining industry of this 
Country would look favorably at the present time upon 
any leasing system which could be devised as applied 
to the whole body of metal-bearing mineral lands, and. 
on the other hand, it scarcely seems probable that the 
Government will attempt the classification of all its pub- 
lic lands as to mineral character at the present time. 
Great cost and unsatisfactory results would probably 
stand in the way. If such a classification were certain 
..f fairly accurate results the cost would probably not 
be seriously considered, but any field engineer who has 
spent a few seasons in examining promiscuous undevel- 
oped mineral claims can fully appreciate the difficul- 
ties in the way of classifying areas on which 'gophering' 
lias been done, not to mention those where no prospect- 
ing at all has been done. The reasons for this depend 
upon geologic principles which are outside the purpose 
of this discussion. Those persons who are prone to find 
fault with a Department for enforcing the mineral laws 
should not forget that there are thousands of mineral 
claims in the Western states on which not a stroke of 
work has been done since the day patent was issued. 
This condition becomes the more deplorable when we 
realize that our public mineral land is fast passing into 
private control, and it is only a matter of a few years 
when there will be no mineral land to patent. 

Admitting that our present system is better than a 
new one which would entirely overthrow the present 
law as a whole and the interpretations of the courts 



for many veal's past, we will assume that it needs mod- 
ernizing in some respects, and that Congress should pro- 
vide nieans*for universal enforcement. 1 believe the fol- 
lowing points arc worth consideration in detail: 

1. There is considerable ignorance in some localities 
as to just what our law means. 

12. ( lertain injustices are possible under the present 
law. 

3. Opportunities for fraud under the present law exist. 

■i. The lode claim is not large enough to provide ade- 
quate protection to a valuable mineral discovery, hence 
the so-called protection claims' have come to be a cus- 
tomary means of supplying that protection, although 
these claims have no legal existence other than that con- 
doned by custom. 

Ignorance of the Law Too Common 

If any revision of our mining statutes is made, it 
should be in such clear language that its exact meaning 
cannot be doubted ; and then the Governemnt should 
undertake a crusade of instruction by posting the laws 
in all postoflfiee, land office, and other public buildings 
in the public land states, and by supplying copies of 
it at all public offices for free distribution to interested 
people, without making it necessary for them to write 
to the proper officials for a copy. Out of the several 
hundred prospectors and locators whom I have visited 
I cannot recall one who had a copy of the Federal min- 
ing statutes at hand. 

I am satisfied that in the past, and to a great extent 
at the present time, a great deal of the criticism of the 
present law is based upon ignorance of its exact mean- 
ing and interpretation by the courts. The Govern- 
ment has not been careful enough to educate the pub- 
lic. In the course of my own work I have been asked 
many times by old prospectors and by officials of min- 
ing companies just what are the requirements for 
patenting mineral claims. Probably most of these peo- 
ple knew the approximate wording of the law, but they 
did not know the interpretation placed upon it by the 
courts. Some were inclined to emphasize the mineral 
discovery requirements, thinking it necessary to have 
pay ore. while others were inclined to emphasize the 
good faith requirements, believing that properly per- 
formed assessment work was sufficient evidence that 
the prospector believed he had mineral in sight or in 
reach and that such a condition should pass for a min- 
eral discovery. There is little doubt that in some 
localities custom bad condoned the latter situation be- 
fore examinations were made by the Government: in 
fact, in some localities the mineral discovery require- 
ments of the federal statutes were overlooked entirely 
by locators, and naturally when the Government in- 
augurated the system of examining claims which came 



JuU 1^ I'll 



MIMM. AM' S< II \ III |. I-KI SS 






•I'll . B 

itteinpling to obtain patrol to land 
with i t mineral value, but with very app 

Valut 

nth but .hi! not kiinH the actual requirements 
law. 

Under t: law there are certain Injustices ap 

parent, the moal conapicuoua one perhapa being under 
the placer law, which makes it possible for an am 
linn or company 3 iple to locate and hold legally 
• doing the ^mx- amount of bbwmiiiiiiiI work re- 
quired of a prospector on his 20 juris, which is the 
maximum area he can locate as one claim. If he wishes 
tn i.M-itti- 160 ni-n-s. he mils) make s locationi and do 

rorth i>r work, whereas if he is dish si be "ill 

160 acres a> one claim bj making use of 7 dummy 
locators, thus saving $700 worth <>t' work, the labor of 
locating 7 claims and the expense of recording them. 
Such a law encourages crookedness, and what is the 

for SUch provisions ' Why not ivi|i>iiv .■ksoii 
Worth nf work of the 7 locators mi tin' 1' I am 

unable t" answer the query to my own satisfaction. The 
same principle was not carried out with regard to lode 
local 

Another injustice sometimes arises in cases where a 
|i,Mir prospector has a valuable location i>n which he has 
done his wnrk honestly. The large company or indivi- 
dual with money overlaps the prospector's location and 
applies for patent The prospector is npelled to re- 
sort to law for protection. Tn be sun-, the deputy min- 
eral surveyor Bhould exclude the conflict when it is an 
earlier valid location, but he is not always in possession 
of the facts and may take the statement of his client, 

sine,' iii sneh eases he ran hardly collect fees for time 

spent in such investigation A valid mineral location 
should be automatically protected by the tinwrnment 
against sneh encroachments, for it often happens that 
the ground is lost to the prospector simply because he 
cannot afford to carry It is case into court. 

I believe an effective method of protection could be 
brought about by requiring every mineral location to 
In- examined at the expense of the Government within 
a reasonable time after location, as to conflicts if any. 
location work, marking upon the ground, and roughly 
as to its dimensions and relation to nearby public monu- 
ments, aeeepted surveys, or other fixed landmark. This 
work would require a competent man in each important 
public-land mining district who would do the field work 
and keep complete accessible records of his work. This 
would also prevent another evil, which has flourished 
in some localities, that of staking out oversized claims. 
It probably would not be necessary at this time to 
examine the claim as to mineral discovery (unless the 
claim is made larger than at present!, but the examiner 
should be in possession of any facts which tend to prove 
fraud on the locator's part. Sneh an examiner would 



1m- in a poaitioi ..i> an.| . u| 

claims whi I i.\ neighboring L 

ither at time ot 
making application for patent or earliei 
should an-- The Government would always be in 
posscwiiiiu ni ii in whether the locations were 

fraudulent or valid and Mould place itself In ■ position 
i" protect .ii.. tiveU the ponr locator. It would 
decrease largely the fraudulent locations and save in 

Uiih the Gover ml and individuals a great deal of 

litigation, all of which is a heavy expense mid too often 
oreatea hard feeling. By thus Dipping the trouble in 

the bud I believe that I he ( Jnverii incut wuuld do itaelf 

and its citizens, and particular!) the mining induatrj ■ 
great service. It would have a tendency to stimulate 
proa] ting by men with the physical ami menial equip 

meiit for BUCh work. If such a federal office were 

created it would be a good place to r -d all mineral 

locations mad.- in the district, thus supplying the Qoi 
eminent with such records. 

PaOTBcriON kor Locators 

In a lew mining localities, where it is in most instances 

impossible t ;ike a mineral discovery at an expense 

500, some provision should be made to protect n 
locator while searching for ore. In such districts ore is 
found only at depth and it is unreasonable to require a 
mineral discovery at the time a claim is located. I be- 
lieve such districts should be set aside by the Interior 
Department and a plan devised for allowing prospectors 
to make a limited number of locations under adequate 
protection for a fixed period which would be long enough 
to allow mineral discovery to be made. In return for 
such protection the prospector should consent to do a 
reasonable amount of properly conducted work on each 

locati »ach year, sneh work to be done with the view 

of making a mineral discovery at the earliest time con- 
sistent with good work. The Government should have 
a competent engineer in the district, whose duty it would 
be to supervise for the Government's interest the locat- 
ing and developing of these protected claims. As soon 
as a mineral discovery is made on any claim it should be 
alienated from the protected area and subject to the 
general mining laws iii force on the public domain at 
large. At the ti the mining laws were made by Con- 
gress no provision was made for such a condition, and 
it seems only proper now that such a condition is known 
to exist that the Government should make adequate 
provision to meet the situation. 

Under the Act of January 22, 1880, (26 Stat, til the 

locator is allowed the full calendar year next SUC( ling 

the one in which the location is made within which to 
perform first assessment work, that is to say, if a loca- 
tion is made in .January ]!I14. the claimant has until 
December HI. 1015. a period of two years (Mills v.. 
Fletcher, 34 Pac. fi:;7'. in which to do assessment work 
for one year. By relocating the ground every two years 
a valuable piece of ground can be tied up indefinitely 



102 



MINING AND SCIENTIFIC PRESS 



.lulv 18, 1DH 



and put beyond the reach of locators in good faith, or 
even of the Government itself. This statute is notor- 
iously abused by that class of men who make fraudulent 
mineral locations on ground valuable for agriculture, 
water power, townsite, right of way. etc., and thereby 

make in. end of trouble. I believe this law should be 

stricken from the statute hooks and another substituted, 
if necessary, which would make it accessary to perform 

+ 100 worth of assessment work not later than one year 

from the date of location, or in ease of failure to do so. 
automatically proclaim the location Legally abandoned 
Ami in ease a claim heeouies automatically abandoned 

should be a period of at least one year between 
the date of automatic abandonment and the date on 
which it might be relocated by the same person or 

company. 

The Door Thbown Open to Fraud 

It has been possible in the past to locate land valua- 
ble for timber, agriculture, water-power, or townsite. 
as mineral claims, and even to patent such a group with- 
out having any indications of valuable mineral in sight. 
because the Government has not supplied the means of 
enforcing its laws. It is possible, even now, to do so on 
public lands outside of the national forests, for only a 
fraction of such claims are ever examined by Govern- 
ment officers to determine their mineral or non-mineral 
character. Such examination has been carried on with- 
in the forests and the records show that hundreds of 
claims have been canceled, after a hearing was had. 
because of lack of compliance with the Federal statutes. 
It is true that a good proportion of such canceled claims 
were protection claims but many eases of absolute fraud 
have been brought to light. A perusal of pages 5 to 10 
of the United States forester's report for 1912-13 will 
leave no doubt as to this fact, and to my mind is a very 
eloquent argument for the examination of all mineral 
claims for which patent is asked. As to the protection 
claims, there is a strong argument in favor of the miner. 
sufficient in many cases to justify the conclusion that 
there is a defect in the law as it now stands. 

The Size of the Lode Claim 

In order to avoid the necessity — for it is often a real 
necessity — of making these blanket locations around a 
discovery, I propose the enlargement of the lode claim 
from 20 acres to say 40, in the form of square or 
rectangular tracts, laid out by legal subdivision of the 
public survey. Such a change would make the claitn 
large enough for protection against speculative locators 
whose policy it is to take advantage of the real dis- 
coverer's labor, and at the same time would automatical- 
ly do away with the necessity of extralateral rights, thus 
forestalling for the future the greatest cause for litiga- 
tion the mining industry has had to cope with. This 
would automatically stop much of the injustice perpe- 
trated by the wealthy mine owner upon the prospector 
and miner, under the guise of the present apex law. 



In case the size of the claim is increased it might be 
wise to require $100 worth of work for each 20 acres, 
or fraction thereof, in the claim and to enforce the dis- 
covery requirements vrvy strictly in order to prevent 
tying up of large areas of country* I realize that this 
is touching upon dangerous ground, but it is presented 
Only as a suggested way out of a real difficulty. 

In this argument, for which I am personally. responsi- 
ble and act in no manner as a spokesman I'm- any Gov- 
ernment bureau, 1 have proceeded upon the assumption 

that criticism has very little or no constructive value 
unless it is hacked by suggestions for a cure. In fact 
I recognize that it is absolutely impossible to make a set 
of mining laws which will suit every one. 

Right here I can do no better than to quote from the 
'Twentieth Annual Report' of the Bureau of Mines of 
Ontario, Vol. XX. Part 1. p. 270. Hill, where mine 
commissioner S. Price lias so aptly expressed the situa- 
tion when he says, speaking of mining laws in general : 
* Probably no law upon the subject anywhere 
has ever had the unanimous approval of those working 
under it. for individual opinions and points of view 
differ even more widely than the laws. Poor prospectors 
and rich capitalists, men with little and those with large 
experience, those who want to find something to develop 
and those who desire merely to get something to sell, 
the miner who wants to work the land for the valuable 
mineral he expects it to produce and the speculator who 
desires only to hold it while neighboring development 
increases its value, can hardly he expected to view" mat- 
ters in the same light or to desire the same kind of a 
law; nor is the interest of any of them always identical 
with the paramount interest of the community as a 
whole to which the property in the first place be- 
longs. • • •" 

In the above argument I have had in mind justice to 

the i r prospector, the interests of the mining industry 

at large and that of the country as a whole. The diffi- 
culties in making and administering mining laws are 
largely brought about by unscrupulous locators and 
stock venders who are 'in the game for what there is in 
it,' and I freely acknowledge that such do not belong to 
the mining fraternity proper. If everyone were honest 
there would be very little difficulty under the present 
law. but human beings are still human and to some ex- 
tent selfish, all of which requires that the central gov- 
ernment should take a strong hand in the administration 
of its public land laws in the interests of common 
justice. 



It Is a Curious Fact that the United States, with 
enormous deposits of iron ore, depends on deposits in 
foreign countries for most of its supply of the metals 
used as alloys in the manufacture of steel, such as 
manganese, nickel, chromium, and vanadium, according 
to the U. S. Geological Survey. The production of 
ferromanganese, spiegeleisen, and other alloys in 1913 
amounted to 226.475 tons, against 128.147 tons in 1912. 



Jul) i" l'H 



\tl\IV. \M> m II Mil |. |>H 







Hill "V III.' -VI Mils I III I K I'owlll lilWMON. 



De^eSopinnieiffifts ©IF ftfin© Alaska Gold Mlnmies Comrajpairay 



By E. E. MURJA 



Probably nowhere in the world has mining on such 
an immense wale been undertaken by so many com- 
panies as in the Juneau Alaska district ; so therefore 
a review of the present status of the Alaska Qastineau 
property, held by the Alaska Gold Mines Co., may be 
nt' interest t'> mining men generally. The Company has 
three miles "f claims along an orebody varying in 
width from To to MM) ft., and carrying from $1.50 to $2 
per ton in gold, with a net profit of from 50 to 75 cents 
per t"n because of the large-scale production. The 
mining work of the Company is conducted from Sheep 
Creek, four miles south of Juneau, and the work on 
the power project is on Salmon creek, four miles north 
of Juneau. The main offices of the Company are at 
Juneau, with I'.. L. Thane in charge. 

Mink DEVELOPMENT 

I'll.- underground development up to the present time 
includes the Alexander adit, known as tunnel No. 10, 
at the Perseverance mine in Silver Bow basin, which 
lias been extended and is now ."iiiOO ft. long. Cross 
CUtS arc being ilriven from this and from the main adit. 

known as the Sheep creek tunnel, which com ts the 

Perseverance workings with the millsite overlooking 
Gastineau channel at the mouth of Slice]) creek. A 
vertical three-COmpartment shaft. 1">44 ft. in depth, con- 
nects with the 8 by 10 adit having a length of 9178 ft. 
The work on the adit was started in November 1912 and 
was completed April 1, 1914. During the last six 
months a monthly rate of 600 ft. was maintained. Three 
shifts were worked on the honus system in completing 
the tunnel. Thirty-three feet were made in a single 
day during November. 

An electric tram I 1 4 miles long connects the portal 



Of the adit with the coarse-crushing plant on Sheep 

creek. The present gage of 24 in. is to be changed to 

36 in., and the storage-hattery locomotives will be re 

placed with the trolley system. All the mining will 




THE OLD PEKSEVERA.NCE .MILL. 

be conducted through the main adit, and ore hauled 
to the reduction plant in 300-ton trainloads. 

Reduction Plant 

The first unit of the reduction plant of the Company 
prohably will he completed by January 1. 1915. The 
coarse-crushing plant, situated on the hill 700 ft. above 
the beach, is almost completed. The foundation and 



1(14 



MINING AND SCIENTIFIC PRESS 



Julv 18, 1914 



Bteel framework are completed and the machinery is 
now being installed. The ore falls into ondergro 
storage-bins and is hauled by a backet line through an 
underground tunnel, 300 ft. loug, to the fine-crushing 

plant. Tin ncrete foundations for the fine-crushing 

plant are neatly completed, and the steel for the frame- 
work is all on the ground. The sides of the building 
will be of galvanized iron. After a preliminary sort- 
ing, the ore is crushed by Hardinge conical mills, then 
taken over amalgam tables to the concentrating depart- 
ment. Wilfley tables and Garfield roll mills will pre- 
pare the concentrate for the re-treatment plant. Ex- 
periments with a view to cyanidation of concentrates 
are still in progress. The first unit will have a capacity 
of 6000 tons daily. 

Machine-shops, sawmill, six bunk-houses, mess-house. 
office buildings, and dock have been built on the beach. 
immediately below the reduction plant, the floor of which 
is 300 ft. above sea-level. 

Power 

The Salmon creek power project will be completed by 
July 25, 1914, according to statements of the engineers 
in charge. The first concrete for the dam, which is of 
the variable radius arch type, was poured July 25, 1913. 
The dam will have a height when completed of 177 ft., 
with a length along the crest of 650 ft., and the thickness 
at the base will be 47 ft. On June 25, 26 ft. remained 
to be built. Following the completion of power-plant 
No. 1, which is on the beach at the mouth of Salmon 
creek, in 1912. a 4^-mile tramway was built and build- 
ing erected for work on power-plant No. 2 and the 
dam. Power-plant No. 1 has one unit of 1500 kw. in- 
stalled. The second unit will be installed in the spring 
mI' 1915. The plant is closed down for repairs al pres- 
ent. Power-plant No. 2, with two generating units of 
1500 kw. each, is completed, and is furnishing all tin- 
power fur present operations of the Company. The 
beach at Salmon creek is being bulkheaded to protect 
tin' buildings and road from tide action. A concrete 
tail-race will be built. 

In order to handle cement and supplies with dispatch. 
a special dock was built, with a highly practical apron 
track by which loaded cars of cement can be moved 
from the barges directly upon the tramway. Barges 
hearing fifteen 3-ton ears are unloaded and empty ears 
put on board in 40 minutes. Three hundred and five 
tons oi cement is the record amount handled during a 
single day. A 2000-ft. cable tramway raises the cars 
300 ft. to the steam road leading to the dam-site. 

When complete, the dam will impound 20,000 acre- 
feet of water. Above the dam. in what will be the 
reservoir area, the quarry, gravel, and washing plants 
are situated. Belt conveyors carry gravel, sand, and 
cement to two mixers with a daily capacity of 7oi> yd. 

As much as 860 yd. has 1 d poured in 24 hours. The 

concrete is hoisted in a 2-compartment tower 75 ft. 
high, shown in the halftone, for distribution. A ditch 
3850 ft. long is being built to drain the north slope 



of the basin below the dam into the reservoir. The 
construction camp at the dam is roomy, clean, and well 
drained ; shower baths, toilets, and other conveniences 
are provided. 

Computing the width of the ore at 70 ft., the orebody 



-" 


r^ 


1 M 


up, ' 




^v ; 


V 


k\ Jt * 


^ HA 





INTERIOR OF POWER-PLANT NO 2, ALASKA GASTINEAU COMPANY. 

above the main adit is estimated to contain 50,000,000 
tons, assuring operation of the mill for many years to 
come. 



Cosfts aft ftfin® Gire&ft Fmgall Mine 

< ire extracted from the Great Fingall mine, Western 
Australia, is of a free-milling class, which is stamped, 
concentrated, concentrate roasted and cyanided, sand 
leached, and slime treated in a vacuum-filter. It was 
mined down to the No. 18 level, a depth of 2480 ft. on 
the incline. Costs per ton were as follows: 



Ordinary development. . .$0.91 
Special development.... 0.99 
Mining: 

Breaking ore $1.25 

Filling stopes 0.12 

Tramming and hoisting 1.52 

Total mining $2.89 

Treatment: 

Crushing $0.15 

Transport > 0.04 

Stamping 0.62 

Concentrating 0.04 

Concentrate treatment. 0.07 
Grinding sand 0.32 



Leaching sand $0.22 

Filtering slime 0.24 

Pptn. and clean-up 0.08 

Disposal of residue... 0.18 
Treating custom ore 
and concentrate .... 0.12 

Total treatment $2.08 

Less custom account.... 0.19 

Net treatment cost... $1.89 

Bullion expenses 0.06 

General expenses 0.62 

Grand total $7.36 



Crude Barytes Production of the United States in 
1913 was 45.298 tons worth $156,275, ail increase of 7820 
tons and .$2962 compared with the yield in 1912. Most 
of this mineral is used as a pigment in the manufacture 
of mixed paints. 



Coke Production of New Mexico in 1913 was 4G7.!)45 
short tons, valued at $1 .548. 536, an increase of 54,039 
tons and $191,590 over 1912. The coke is from the Raton 
field coal. 



!•>!» 



MINING AND * It Mil U I'M 










■llfllill- 



Workman's Compensation 

The Editor: 

sir While "ii a recent trip through Sierra and Ne- 
vada counties, I noticed that the workman's compensa- 
tion law is not altogether popular. The general com- 
mint is. that it is hard on the small mine owner, <>m- 
man who is developing a prospect, and 
who says he can't afford the extra tax. 
is employing only unmarried nun. An- 
other, has leased his mine and mill to 
the men, giving them a bonus of ten per 
of the net; above wages and sup- 
plies. The lease runs only 30 days. 
being signed over again at the begin- 
ning of each month. Be says this works 
very well. The men are more saving 
with supplies, and the increase in the 
amount of work done, more than repays 
tin.' ten per cent. But I doubt it' this 
would evade the law in case of an acci- 
dent. Being the owner, he is probably 
just as responsible as the man who lets 
a contract. 

Insurance is a good thing, — for tin- 
workman. — and good for the owner, as 
protection against possible damage suit. 

But it is not fair that the mine owner 
should stand the whole expense when 
tin- miner is the chief beneficiary. Lei 
the mine owner pay one-third of the tax. and the miner 
two-thirds. It ran lie deducted from his monthly pay- 
check, just as some of the mining companies used to 
hold out a dollar per month from each check for the 
services of the doctor. 

Geo E. Bigeluw. 
Brown Valley, California, June 28. 



necting drill-holes No, l. s. 18, ami 16. Thi 

corner drill-holes, taken individually, would he 
representative of only ' , tin- ana of thai of an ii 
drill hole, say No, ■"> or No. 7. Likewise tin- holes No. L', 
B, 13, 12, ii. ami 11 would hi- representative of only ':. 

the area represented hy holes No. ."i or 7. 

The computations, then, to arrive at tin- correel 




mag 



urns 



The Editor: 

Sir— In Mr. Deeoto's article, I can see where lie can 
prove his contention that no part area of a given area 
of dredging ground is representative of the total area, 
as regards its value, but it does not seem to me that 
the correct value per cubic yard of his theoretical plot 
has been arrived at by his method of computing the 
same. 

I get from his article that the dredging operations 
are limited, in this theoretical case, by the lines con- 



DIAORAM SHOWING Portion or lilill.l.-llol.l.s. 

value of the area hounded by lines connecting drill- 
holes No. 1. 3, 8, and ti, would be: 

1 130 X (40 X %) or 10.0 = 1300 

2 35 X (30 X &)orl5.0= 525 

3 60. X ( 20 X Vi ) or 5.0 = 300 

4 50 X (20 X 1 ) or 20.0 = 1000 

5 40 X (20 X 1 ) or 20.0 = 800 

R 50 X (30 X 14) Or 7.5= 876 

7 60 X (20 X UO or 10.0 = 600 

S 42 X (30 X U) or 7.5= 315 

95.0 5215 

This gives the value per cubic yard for this part 
area of 54.89c. In a like manner, the total area gives 
a value per cubic yard of 28.76 cents. 1 

To get a value of 37.69c. per cubic yard as calcu- 
lated by Mr. Decoto, it is obvious that the ground 
would have to hr dredged to take in the area enclosed 

'This gives a difference of 8.93c. per cubic yard, or 31%, 
which might in some close dredging propositions change a 
calculated profit to a loss. 



106 



MINING AND SCIENTIFIC PRES3 



July is. l!iu 



by the outside boundary lines shown in the sketch. It 
imjiht be poedable for a dredge to work such a boundary, 
but it is improbable that the operations would be so con- 
ducted. 

E. Bryant Thorxhu.l. 
Cobalt. Ontario, May 20. 



Tin- Editor: 

Sir — I have just b reading the article 'Revision of 

tin- Mining Law,' by Frank P. Davis, in your June 13, 
1914, issue. I have given this subject, particularly the 
Location anil title of quartz mining claims no little 
thought and study since the question of a 'Mining 
Code Commission' has been agitated, and I give Mr. 
I>avis ere, lit I'm- advancing some good ideas in his fifteen 
different suggestions. Taking them in the same numer- 
ical older. I will present s e of my views of the ques- 
tion, in a brief manner. 

1. All mining locations to be made only by citizens of 
the United states. 

2. Size of a full quartz mining claim to be 1320 ft. 
on a side (40 acres] and located relative to the legal 
subdivisions, if surveyed. In any event, all boundary 
lines to lie north and south ami east ami west. 

:;. Location monument, with a legible notice, a true 
copj of the record, posted at the discovery work. 

1. Boundaries to be plainly marked with stakes, or 
monuments, on all sides of the claim, so that thej can be 
easily traced. Corners established with Large prominent 
posts (6 in. square or more set in mound of stone, at 

least 4 ft. above ground, giving Dame, number, and 
identity of the corner, with right to fence but not to 

encroach on public trails or highways. 

.">. Discovery work to consist of a shaft, adit, or open 
cut. not less than HI ft. dec]), and more if necessary, to 

expose the vein in place, and it must show a vein, to be a 
legal location. This work may he done at any point 
within the boundary id' the claim, at the option of the 
locator, regardless of any 'centre line.' The position of 
this discovery work, with relation to the boundaries, 
must be accurately Located and appear in the record, by 
giving the distance from all four lines of the exterior 
boundary of the claim. 

fi. Have Location notice describe the location, as far as 
possible, by legal subdivisions, giving section, township, 
range, etc., so that it may be accurately located from 
the field notes of record. If it cannot be located and 
platted from the record it is not a valid location. 

7. No extralateral rights, but to own all mineral with- 
in its vertical boundary lines. 

8. Claim must be recorded within 30 days from the 
date of discovery, at which time the discoverer must post 
a temporary notice, bearing date of discovery, and de- 
claring bis intention to locate and record. 

|i. No overlapping of claims. 

Hi. Fix a penalty for fraudulent dating. If the title 
to a claim has lapsed the original owner can only secure 



it again by paying up bis back tax, as prescribed below, 
and not then if it has been located by others. 

11. Let the first day of January be the date from 
which all locations are fixed, relative to the tax. etc., so 
there will be no confusion of dates. If a claim is located 
in 1914 the tax must be paid in 1915 or it is subject to 

Local ion by other parties, 

12. To pay a yearly tax. until patented, of a fixed 
amount, on each location, in lieu of the assessment now 
required. Said tax to In' due in the second year of the 
location. This tax receipt to be proof of non-abandon- 
ment. .Make all unpatented claims subject to this tax. 

13. Proceed to patent under the same rules and regu- 
lations that exist today. Get your survey number and 
a U. S. deputy mineral surveyor to mark and establish 
the corners. It is absolutely essential to have these 
monuments correctly fixed, particularly so if it is a 
patented claim. 

14. Accept no agricultural filings in known mineral 
area, or reserve all mineral rights, with surface restric- 
tions, so they can be prospected. Fix a penalty for post- 
ing 'scare notices.' such as ''No trespassing on these 
premises" on territory that is not absolutely owned. 
This keeps prospectors off. 

15. If the above suggestions were adopted, I can see 
no reason why claims should not be located by proxy or 
power-of -attorney. 

I believe in giving the prospector and locator every 

possible chance, but there are some- of them who abuse 
their rights, which is made possible by the present laws. 
They gel 'hoggish' or 'dog-in-the-manger' like. They 
won't develop their locations, in fact, they can't, nor 
will they let any other prospector in. I know of a case 
and I dare say the same condition prevails, to some ex- 
ii ■nt. in every mining camp in the West, where a pros- 
pector has Llli claims, and he has held them for years. 
Now. it is a physical and financial impossibility for him 
to do this assessment work legally, yet be keeps other 

pros] tors away. In many cases he does not make a 

pretext of doing the assessment, but gets very busy at 
midnight of December 31, posting new location notices, 
in his own and other people's names. I think my sug- 
gestion in paragraph 12 would remedy this. 

If a person should discover something near these '20 
claims' it would be impossible for him to determine 
whether or not he was trespassing on one of them. The 
description, in the location certificate is so meager, in- 
definite, and consequently flexible, that it would be im- 
possible to locate the position of any one of them on the 
ground. The course is generally given as northeast and 
southwest. If there is any tie at all, it is to a pine tree 
or a log cabin that has long since burned down. Hence 
my suggestion in paragraphs 4 and 6. 

In paragraph 2 I suggest the size of a quartz claim to 
be 1320 ft. square. I do not think this is any too large, 
and it would be very easy for a prospector to locate it, 
so there would be no excuse for his not having a valid 
location. For example, he locates the S.E. ] 4 of the S.E. 
i , of Sec. 16, T. 19, X. B. 6 E.. M.D.M., etc. Or, if the 



I'll 



MIN1NC AM) m II MM || I'KESS 






j subdivii 
■IT, from or lo 

iiortli 
us point, and oeseribe il as 
followi Beginning at cornet No l whence tl 
B • ■ '■■ in i: 1000 •■ 

\\ 1330 fl t rn.-r No. 

:t. tl>' di rNo i. thence B 

corner No. 1. the place of beginning. Suppose half of 
'ii>ii 16 an. I ihr eolith half in - 

would be described in the aame ma r. only the 

rting point would l»- on a aide line inataad of ■ conn r, 

Beginning «t a point 1«hm< ft \y. of the 8.E. corner 

. thenoe \ 61 corner No. 1. and 

mer No. 4, th< Q ft to the plac ' 

beginning. These would be valid locations, affixed to and 
made part and panel >>f the public survey. It is a won 
der iii me that something after this Fashion was nut 
adopted long ago. What is the public survey made for, 
it' not just for tliis purpose; to locate and identify poei 
lively different tracts of landl 

It would be possible to locate any claim desired, in this 
manner, so that it would cover the vein apex for the full 

distance. That is reason for leaving the position of 

the location work optional with the locator,.as suggested 
in paragraph 5. Another reason for this is so the locator 

may tak.- im moderation the dip of the vein, relative 

to the vertical ride lines, and locate his surface ground 

irdingly. 

I have made particular mention of sunn- of the features 

of our mining code, and, in my opinion, some of tin- 

worst things the prospector of today has to contend with, 

ea] ially in the newer camps, where so many men make 

a practi f rushing in and staking all the ground pos- 

sible and holding it for 60 or 90 days, or even longer, 
by re-staking it. without doing a tap, much to the detri- 
ment of the camp and ;> hardship to those who arrive 
later. 

In many places I have even seen these stakes stuck 
in the snow. Paragraphs s ami in are suggested as a 
remedy for this fault Ami I believe if the time limit 
for recording was cut to 10 .lays, instead of 30, it would 
be still better. The law giving the locator 90 days to do 
his discovery work. Burvey, and record, in a way. was 
necessary, as it required some time to trace out the 
apex of a vein before it could lie covered intelligently 
with the location. Rut with tin- claim square, as sug- 
gested, this would nol be necessary, and a 10-ft. hole 
could be sunk in any ground in 10 days. This would 
mean that the stake hog' or 'ground hog,' as he might 
well be called, would have to sret busy 'throwing dirt,' 
instead of trying to stake the whole landscape as a 
speculative enterprise. 

As has been sujfffsted, 'now is the time to holler.' 
Dob i wait until the drill strikes the bottom of the shaft, 
and then shout. "Look out below!' 

Clarence K. Cot-tot. 

Forbestown, California, June 18. 



What is the Matter With Prospecting? 

Th.- Bditori 
sir Prom the point ..• ivelj 

ted in examining prospeeta with any prom I 

WOUld Mat.- that in my opinion tl In. f difficulty the 

prospector encounters is Interposed by himself, in the 

form of prices and term are often v. 

that an examination is uol justified, even on the basis 

of the rosy statements made. It' the risk of tl \ 

in examination is taken, the matter usually 
Koils down to the question of putting up .ash for the 
pin ilege of putting up more. 
When trad.- is quiet in real estate, railroad bonds, 

winter wheat " r mining pros] ts, there is alwa; 

underlying reason, namely, that sellers are asking more 
than the buyers can pay. The conundrum is not a 
difficult one from an economic .standpoint. If the quea 
tion were put in another form, namely: How shall we 

Btimulate prospecting 1 I WOUld say by malting known 

pros] ts attractive to tl peratora. 

1 1 I were a prospector, and had a prospective moun- 
tain of orr. exposed at one or two points, and were 
sure of being able to find these points again, I would 
request an operator to examine it ami offer aim a 

y.ar of develo] nt. giving him an option to purchase 

at from $1000 to $10,000, according to circumstances, 
this price to be paid within three years at a rate of 
nol loss than $25 per month. As soon as this deal 
was closed, and it would nol take long if the one or 
two points of ore could really be found again, I would 
H ii n t for the next available mountain of ore and en- 
deavor to close in duo course a similar deal if siu-h 
mountain were available. If my prospects were really 

interesting. I would hope to get a raise in my ii ie 

of $25 per month once or twice a year, and come into 
an occasional bonus when some of the prospects proved 
to 1»' more than interest inp. 

If I could not earn a good living on this basis, I 
would go into some other business, and from a safe 

distance, would amend mj ntribution to this topic. 

I would say it was not because prospects were held 
too high to bo interesting to the buyer, that the busi- 
ness of prospecting was dying, but because there were 
not enough prospects to justify the search for them. 

Unless more prospects are offered on terms which 
will justify examination and development, the art of 
prospecting will perish, aud a post-mortem examina- 
tion will probably show that it died of wilful starva- 
tion in sight of food. 

Operator 
San Francisco, May 20. 

Load factor in electric power being supplied to 115 

classes of industries by the Pacific Gas & Electric Co. 
of California is 59 per cent. 



Coke Production of Kentucky in 191tf was :S17,084 
tons. 



108 



MIXING AND SCIENTIFIC PRESS 



July 18. 1914 



COMCEMTEATES 

Must of these ore in reply to questions received hy mail. Our renders are invited '■• ask quettions and give 
ation dealing with the practice of mining, milling, and melting. 



Im>i v. Russia, and Brazil produce 90% of the world's 
supply of manganese ores. 

'Wireless' telephony is now used in the Lindsay col- 
liery of the Fife Coal Co. in Scotland. Current is car- 
ried through the rails in the drifts. Four receivers 
weighing 50 lh. each have been installed, and each in- 
strument has a battery of four cells producing current 
at l")-volt pressure. 

.\ process for making pressure-sustaining coke con- 
taining a minimum of detrimental sulphur constituents, 
from coal, consists of adding to the coal before coking 
a phosphorous compound of lime, and coking said mixed 
mass. The process has been devised by Leon Franck, of 
Luxemburg, Germany. 

PLUNGER PUMPS are made with several important ad- 
juncts to permit of better operation, which may be de- 
scribed as follows: An air vessel, charged with air. which 
acts as a reservoir of energy. During the discharge 
stroke the air in the vessel is compressed. The energy, 
which is stored up in the compressed air, is given out 
again during the pause which takes place when the 
pump is changing the direction of its stroke. The water 
in the delivery column is thus kept in motion during 
the pause, and shock to the pump is reduced. The power 
required at the beginning of the stroke is also reduced 
as the force of inertia is eliminated, due to the water 
being kept in motion. Sniffing cocks are used where 
the suction pipes are too small. If such is the case the 
water in the suction pipes rushes into the pump at a 
high velocity. This prevents the suction valve closing 
until the ram has made part of its stroke, and conse- 
quently causes a considerable amount of shock to the 
pump when the two columns of water come into contact. 
By using snifting cocks a certain quantity of air is ad- 
mitted at each stroke. The air acts as a cushion to the 
water, and allows the valve to close at its proper time. 
thus reducing shock to the pump. The suction valve 
prevents the water from being forced back into the 
suction column during the discharge stroke of the pump. 
The delivery valve holds the water in the delivery 
column, and prevents it running back into the working 
barrel during the suction stroke of the pump. 



Gas pumps for lifting water are coming into more 
general use. The Humphrey system, as installed to 
pump 180,000,000 gal. of water per day for London, 
with a fuel consumption not exceeding 1.1 lb. of anthra- 
cite coal per pump-horse-power hour, was described in 
the Press of June 28, 1913. Another Humphrey plant 



is to be erected at Mex, three miles west from Alexan- 
dria, for the Egyptian government. Certain lands in 
the district have I Ome 'water-logged.' and it has been 

decided t<> drain Lake Mariut, having an area of 50,000 
acres and .'S ft. deep, and reclaim the area under water. 
To do this, the hike water is to be pumped into the 
Mediterranean Sea, a lift of from 19 to 20 ft. from a 
drainage canal, over a narrow protecting ridge on the 
seacoast. Ten Humphrey pumps, eight of which will 
be sufficient to lift 792.000,000 gal. per day, are being 
made by Messrs. Beardmore and Messrs. Brown. Boveri 
& Co. Each machine will have a combustion chamber 
8 ft. 8 in. diameter by 14 ft. high. The valve-box will 
be the same diameter and 7 ft. high, and is to have 100 
valves of the hinge type, which will close on any ob- 
struction without straining the hinges. The 'play-pipe' 
of the pump will slope upward so as to deliver water 
at the required elevation in the discharge basin. The 
pumps are started by admitting into the combustion 
chamber a mixture of gas and air. The Power Gas 
Corporation will supply an anthracite Mond plant capa- 
ble of gasifying 44 tons per day, consisting of nine 6- 
ft. producers. The guaranteed consumption is 1.15 lb. 
coal per horse-power. Two Venturi meters will measure 
the water delivered from' the pumps. 



A DREDGE may be constructed to handle so many cubic 
yards of gravel per day, yet this capacity is entirely 
dependent on the skill of the winchman. He has con- 
trol of the motors which drive the winches for side-lines, 




CONTROL LEVERS UN YUBA NO. 14 DREDGE. 

spuds, and other gear; also the main motor for driving 
the bucket-line, and lowering and raising the digging 
ladder. In his department, at the top of the dredge, is 
a switchboard and a large number of levers, by which 
he is able to control all operations of swinging the boat, 
stepping ahead, and digging gravel. The accompany- 
ing cut shows the levers on Yuba No. 14 dredge, Cali- 
fornia. 



l«, l'-ll 



MIMV. AM) S< II Mil U I'M SS 



tog 



REVIEW OF MIMING 



H 18HIXGTOX, D I 

no uxm kwua- 

ii..s \\ ' «Miii ikk Tin- l'i in H mi.in. 1 1- Vim Explained 
hi i hi Dim roi • •> ran Bi m I 

i.m not iiron'il Indulgent thin war I" the :it 
tempt of the i B Geological Burr*] to proenre so extra 
| ior ill.' preparation ol the report or the 'Mineral it. 

i of the United S lowing only %""•. ' for the 

eomlni fiscal year as hi run ion ol 185, ' 

h.i.i been aaked bj the .itr. Smith. "Under 

ilu- H. in.' Mr. Smith tolil the House Committee on Appropna 
lions, "there la taken every N,i " • census ol the mineral pro- 
Auction of the whole country, which amount* .it the preaeni 

time to aomethlnf over IS, 1,000." Mr. smith was asked 

how this census Is obtained and thereby revealed some inter- 
esting ilao the Implied plans for the future by the 
Burvej on ibis census, "it is done," he said, "by correspond- 

ind a certain amount ol visiting the different mining 
districts and especially ol Western mining districts. The 
tatement ol the mineral production 
ol each year, by reason of the fact thai we have a permanent 
that is in almost constant correspondence with the 
Individual producers. It Is not like waiting 10 years and 
then getting in touch with the industry, for our statisticians 
are in constant touch with them. We believe thai by the 
various .hecks we use that is, by compiling not only the 
returns ol the Individual producers In the Western 
hut by using the returns of the smelters to which thi 
have ind, then also, by using the double cluck 

of the statistics of the shipments which arc furnish 
the different railroad companies, that we have the t rut li 
of It. It may be surprising, but there have been Instances 
where individual producers several years afterward have 
asked us what their production was for certain years, getting 
this from our hooks, and In Borne cases the return was 
based not so much on what the man might send in himself, 
but on what we learned through railroad shipments at the 
particular siding where his ore was loaded. We are more 
and more giving the public, or are trying to give the public. 
a fair statement ol the mineral production of the preceding 
year on or near the first of January, that being the time 
that a good many people Interested in the subject desire the 
statistics. We make these preliminary estimates, which are 
usually based on what we know of the eleven months prev- 
ious, and then we estimate for the twelfth month. Then 
we are also trying to give to the public before July 1 the 
complete report, which gives the totals, including not only 
the state totals, but the county totals. Our printed report is 
issued first In the form of separate chapters which are de- 
voted to particular products, like iron ore or coal op coke 
and later they are assembled in two volumes that make up 
the annual report. The work is steadily increasing by reason 
of the greater number of producers. I ask for an increase of 
$10,000 partly because I am not satisfied with the promptness 
with which we can issue the reports under the present appro- 
priation, nor am 1 satisfied with the thoroughness with which 
we cover the whole field. With the additional money the 
telegraph would be more freely used to get the reports from 
the producers last to report. Sometimes the expensive part 
of a report is the last of one-half of one per cent, that is to 
g< t the men who are staying out to send in their returns. 



.hi ..( 
■ is ineiii ' in- remain! 

it i- a decided advantage lo bai rrady 

out from thi Burvej office in solicit the rot 

ucb visit win keep • producer In Urn 
•evert] veers, simply I realises the Im 

the Information to the whole Industry. Offices ol the survey 
are In Washington, Denver, Ball Lake i'hi, and Ban Fran 
The increase would ais.> enable thi 

men." 

An Inquiry by Congressman M lei ol Wj lug. as to 

why the statistics from certain states were lumped, brought 
an Im ■ and explanatory answer. The Congressman 

■aid he was especially interested in the showing ol Wyoi 

Kur instance after an Industry, BUCh as Iron in a state was 
heluw .",1111,111111 i.uis per annum thai state was simply lumped in 
Its Iron with other stat.s. "If there are only two producers 
in a state," explained Mr. Bmlth, "we will lump thai state 
with some other state, because by giving tin- total prod 
for two producers only we art giving each one ol tliose pro- 
ducers Information regarding the tonnage of ins competitor." 
"What objection is there to. the people knowing how much the 
Colorado Fuel A.- Iron Co. produces at Sunrise, in my state?" 
asked Congressman Mondel. "There Is no ob replied 

Mr. Smith, "unless the operators prefer to have their returns 
confidential. Our returns are usually confidential." Mr. 
Smith added that he was able to show thai when Cot 
called for the figures of the Individual production ol 
corporations supplying the 0. s. Steel Corporatl 
producers were in the list. He said that the reports had 
practical value moreover as was shown in the case of a 
small miner in Missouri who was not satisfied with the 
of zinc lie was obtaining and who asked of the Survey the 
range of prices for zinc ore. The Survey gave him a report 
showing the range of prices month by month, and in his re- 
turn letter the miller said that through the report he had 
been able to get a considerable advance over the prices that 
the ore-buyers had been allowing him. "The big people do 

not need this kind of help so much as the small prod l is." 

said Mr. Smith. "The large copper mining companies, for 
instance, have an agency of their own whereby they keep 
monthly statistics. It is of course interesting and gratifying 
to us that when they started that system a lew years ago they 
came to the Survey and took the geologist who was compiling 
the annual statistics on copper for this volume, and he has 
since been issuing every month for the benefit of those large 
producers the monthly figures on copper production." Mr. 
Smith was referring to L. C. Qraton, secretary of the Copper 
Producers' Association. Legislation in Congress on mining 
continues to make no advance worth noting. 



XEW YORK 
Business Sm.uiox. — National Coppeb Mink. — Gbansv Con- 
solidates, — Hki.nzk Suits. — Intebnational Steam Pump 
i o. —Gold Hill Ahaih. 

re seems to be something of a new undertone in New 
York markets. The past three years have constituted a long 
period of depression, a lane that seemed to have no turning. 
It would be too much to say that a turn in the lane is In 
sight. There are too many railroad receiverships and too 
many reorganizations obviously necessary, but there is he- 



no 



MINING AND SCIENTIFIC PRESS 



July lis. 1914 



coming more and more evident a prevalence of the belief that 
the worst is known and has been adequately discounted, and 
Students of underlying conditions are getting back to thi 
tion that the country's tremendous production spells pros- 
There are readjustments making and yet to be made. 
There are some reformations of spirit yet to be accomplished 
in financial circles, the lesson that service is the only work 
that deserves reward has been taken to heart by manufactur- 
ers, by railroad operators as distinguished from financiers 
much more fully than it has by the banking element that is 
still feeling the public disapproval. The stagnation of gen- 
eral business is typified by the copper situation. Domestic 
deliveries have been far below normal during all of the cur- 
rent year, while June makes a low record for the year, and 
a new low record for the corresponding month of the past six 
years. Surplus stocks show an increase, but it is so well 
recognized now that the producers are in control that there 
is tin attempt to make market capital out of this feature. 

At the National mine, in Idaho, while milling operations 
are still in the tunlng-up stage, the process used has appar- 
ently overcome the question of the cost of oil, having reduced 
this from about 6 or 7c. to between 1 and 2c. per ton of ore 
treated. 

The Granby Consolidated's fiscal year just completed has 
been a rather important one for the Company, as the manage- 
ment bad in hand the task of putting the Hidden Creek prop- 
erty on a producing basis. The Company has maintained its 
dividend, but while producing some 22,168,614 lb. of copper 
the margin of profit has not been large. 

Judging froiu appearances, the Heinze entanglement of 
various descriptions will receive 'Gordon knot' treatment in 
the near future. Heinze lies at his home ill. United Cop- 
per. Stewart .Mining, Ohio Copper, are all in snarls, which, 
like the Amalgamated-Heinze fight in Butte, will not be un- 
raveled, but will lie cut. Unfortunately for Heinze. lie no 
longer has an H. H. Rogers attempting to oust him from 
| ropi ni' . s. and the man who once fought the Standard 
Oil element in Montana to such a standstill is likely to make 
an almost unnoticed exil from the financial world. 

The international Steam Pump Co. management has been 
attacked by John Drew in a suit alleging the existance of 
fraud in the deal by which the Pump company absorbed the 
Power & Mining Machinery Co. Quite recently the preferred 
dividends on two of the companies controlled by the Pump 
company were passed, and there has been some talk of the 
possibility of a receiver. 

The regulars' down in the financial district have been en- 
joying many a good laugh over the publicity recently achieved 
by Walter George Newman of Gold Hill notoriety. Gold Hill 
was discredited on the New York Curb years ago, and Mr. 
Newman likewise. That he should be able to go to Washington 
and get officials there interested in his proposition is some- 
thing of a triumph of nerve and perseverance. Gold Hill has 
been the vehicle of several spectacular market operations on 
the Curb, but as a mining operation it has been looked upon as 
a joke for years. Investigation into the use of official 
stationery resulted in wiping of the whole matter off the 
Senate Committee's slate as not important enough to take 
up time of the official, but in the meantime, Newman has 
reveled in the publicity so acquired. Inasmuch as gold pro- 
duction in the Eastern states amounted to but $165.73:: in 
1913, apparently Gold Hill is not the centre of a big camp. 
These figures given out by U. S. Geological Survey, included 
Alabama, Georgia, and South Carolina as well as North 
Carolina, within whose borders Gold Hill has its lair. 

Extraction at the new Elm Orlu plant at Butte is from 96 
in :i7 , of the zinc content of the ore. The Minerals Separa- 
tion process is used. Tests are being run at Anaconda on a 

50-ton Minerals Separation flotation plant treating slime from 
Dorr thickeners. The first results are even better than was 
anticipated. 



WARREN, IDAI/o 
Bio Cbebk mimm. District: Situation, Blevation. GeoloW, 
ami Noras n\ nil Moscow, McRae-Goldman, Ri.i. Metal, 
Vh tob-Glasgow, Gold Com, imi Pbobiolo minks. 

The Big Creek district is situated in Idaho county, about 30 
miles from Warren, and liu miles from Thunder City. Minerals 
have been found in an area of about 17 miles north and south 
by 8 miles east and west, and which contains a large variety 
of base and free-milling ores. The district is approached from 
the railroad at New Meadow and Thunder City, both of which 
are branch terminals, over state wagon roads. Yellow Pine, the 
nearest settlement, is in the southern part of the district, and 
is reached by wagon road from the Short Line railroad at 
Thunder City about 50 miles distant. Approximately 30 miles 
of the Yellow Pine road is in the National Forest Reserve, and 
is well kept up. This part of the road is well constructed and 



, AHMSr£1O 




MAC OK IDA liu. 

is ideal for automobiles, the grades being easy; but the other 
part of the road has been allowed to get in a bad state of re- 
pair. At the time these notes were written the county was 
doing some extensive repairing. However, in summer time the 
stage easily makes the through trip. Elevations of the dis- 
trict vary from 7100 to 9400 ft. above sea-level, and is on the 
extreme heads of Profile creek, Big creek, and Logan creek, 
which has a large amount of timber and water-power in many 
places. - Snow in this region begins to fall late in October, and 
lies there until May, but most of the heavy mining is done 
in the middle of winter. The district, as a whole, is one of the 
most picturesque in the state, the innumerable water-falls, 
lakes and mountain peaks can be rivaled in few places. Yel- 
low Pine is an ideal spot, there being an abundance of yellow 
pine saw timber there, with plenty of hunting and fishing and 
may some day be a great resort. The northern route into this 
mineral belt is over the old South Fork and Warren road 
which connects with the Pacific and Idaho Northern railroad 
at New Meadow 90 miles distant. This road crosses three high 
summits, one of these summits is over 9000 ft. high, and the 



I'lll 



MIMV. AND S< II Mil l> PH 



111 



lltiin- thai would be 
wr> to pttl it in .h»i- hauling would build ■ good 

mad r Mm thr.. -irlct 

nt ami thi 

ippoitunKJss t<> 

illltc. cut b] in' 

Which, In 

mam cases i left the raliu Handing In 

Del The ... .( the lut r<i 

erai. »■■ fonnd in numbers ranging from :• ft in thirk 

it nuiw Although the rormatlon u em ap by 
molted, thi being 

in pine*. 

Thi' Minium,' In the MoBCOU mil 

determined by shallow ««■ ind .1 

gold niin 1 from the mors • 

til* emu';' ihrougboDl tin' entire width by panning. Tin- d< 
posit, on thin group of claims, has been traced for over a mile, 
and at cine point ha* I I by 11 cross in t milt 

ml has obtained a vertical depth of 150 ft. Two 
hare bean drlTen to the rarfaoe, and around these a 'glory 
hole' has been opened. The adit dump has been connected by 

tramway bung on stumps to a five stamp mill at the 
foot of the mountain. With this crude affair tin- owner makes 
a good living. The ore is free mllllnj 

when It changes Into a rich sulphide. The glory hole has pro- 

dueed aboul 1 500 tons of ore that averagt b J" 1 free gold per ton. 

.ken from the sulphide horizon in the main 

I", in gold and silver. BS9! of the value being gold. 

Is teats made on some of the concentrate show an 

b] grinding and agitation 8 hours In an 

sib eolation. During the past season some well known 

engineers sampled this property, and one sampling of 160 ft 

of the main an average of $3 per ton: while the zone 

wide, of more heavily mineralized ore. Is reported t" 

; I 10 per ton. 

Continuing north from the Moore bonanza, another large 

I ore Is in the McRae-Goldman claims, shown by thick 

bands and a network of honeycombed quartz and gangue, 1"" 

ft. wide b] several hundred feet long, which yields by panning 

$5 to $2n gold per ton. This property Is also being developed by 

the owners by a cross-cut adit to determine Its width and aver- 

llue. The claims are parallel with a large quartz vein 

containim: some small streaks of rich ore. which were the 

basis of development work and a lot of wildcat stock flotations 

in the early history of the camp. 

The Red Metal mine, on the west vein, has a large body of 
brown-stained qnartz which contains some sulphide and gold 
and a small percentage of copper is of great width. On the 
hanging wall side of this vein, a "ft. Iiody of silver ore has 
opened by two cross-cut adits to a depth of 100 ft. In 
. owner extracted five tons of ore from an lS-ln. streak 
on the hanging wall, and shipped It to the Tacoma smelter, 
return Inu over $200, and 1 oz. gold per ton. The owner is 
now taking out a few tons which he expects to ship by parcel 
post. 

Continuing on the same vein north to the Victor and Glas- 
gow L:rou] .s of claims, the ore is similar In character, but the 
gold content Is much higher. In some places on these claims 
this is up to several ounces per ton. In several openings on 
the surface, small amounts of free gold can be obtained by 
panning, and from a shaft which is down 25 ft., ore has been 
extracted which assayed several ounces per ton. The main 
vein on this bench dips about 70° east, and several small string- 
ers varying from 1 to 5 ft. are dipping into the main vein at 
an angle of about 40°. The Intrusive dikes are numerous 
here. The owners of this property are driving a long cross- 
cut adit which will cut this vein system over 200 ft. below 
the outcrop. Another adit has been driven in the mountain 



in* • assays 

luelit ■! 

Ouln mine li situated on U 

vhli b 
assaym »eii 1 hi. i,.|„ traverses a glael 

and i« ■ ut ii> inn 
obtalni ind in nmi, 

eroua lUimll streaks which often lie directly parnllrl to String- 
ers of slderlte. and » !■ ag Into Hie main 

!«..ii ut brown oxide Al lbs fool or thin mountain 
gold In round In profitable quanl 

The Problglo Mining ins propsrtj consists of rour quartz 

claims and mie placer claim, and Is situated das north from 
the Victor claims Tha rein on thin property is ico ft. wide, 
as proved bj several surface trenches, and gives fair assays in 

gold and silver along lis full length. Several rich streaks of 

Iver ore have been cul betwei n the enclosing vein malar 

lal. varying from 1 t" 12 In wide and assaying high in gold 

and silver The Company Is planning m ship several tons or 

rich OK this sin r. and will probably build 11 small mill. 

By driving an adit in from the foot of the mountain a depth 

10 ft can be obtained. 

Among other properties of the district, in various stages of 
development are tbe Laufer and Davis, Independence, and 
Copper Camp. 

For cheap power resources the district Is unexcelled, as It 

has a number of Bt reams which can be made to develop 60, 

hp. at moderate cost, Hig creek. In connection with Profile 
gap, affords comparatively easy railroad construction from 
the main Salmon river, and up the middle fork to southern 
Idaho. The ultimate construction of a branch over the pro- 
posed line would come up His creek and open up the entire 
district to railway transportation. 

DEADWOOD, SOUTH DAKOTA 
Activities or tiik Deadwood Business Club in Minim; ami 

FoaitiH Hi mi 1 in in; Mining Co*— The Homestake's 

New Hoist. — HIDDEN Fobti'nk anii Tro.ian. 

In the summer of 1913 the Deadwood Business Club thought 
that by developing some promising mining prospect a stimu- 
lus might be given to the general mining conditions of the 
district. After considerable Investigation on the part of a 
special committee appointed for the purpose. It was decided 
to do the first work on the Heidelberg property, In the Two Bit 
district. The owners offered an attractive proposition, namely. 
to give a one-half Interest for $5000. with the agreement that 
the money be spent in development. Work was undertaken in 
August, 50 citizens of Deadwood each agreeing to contribute 
$100 In 10 monthly payments of $10 each. Administration of 
the funds and development was turned over to five trustees, 
two representing the owners, two representing the subscribers 
and these four selecting the fifth member. Payments on sub- 
scription commenced August 23, and the final payment was 
collected on May 23, last. During the 10 months' operations. 
380 ft. of development was done in new ground, besides en- 
larging and timbering in a substantial manner the main adit 
following the ore-shoot. In the course of the work there was 
removed, sorted and shipped 46 tons, dry weight, of ore which 
netted above treatment and transportation costs, $371. In 
addition a quantity of ore of milling grade was piled on the 
dumps. Since this time (May 23) about 70 tons additional has 
been shipped, a large proportion of which was in the bins at 
that time. The ore is a typical refractory silicious material, 
similar to that mined in the Bald Mountain district, occurring 
in the upper Cambrian shales. The ore is principally sand 
shale enriched from a silicious 'vertical.' This vertical, which 
is an average of 1 ft. In width, has a course of north 25° east. 
The sand shale is enriched on either side of it for a distance 



112 



MINING AND SCIENTIFIC PRESS 



July 18, 1914 



of 1, 2. and 3 ft. It is 1 to 8 ft. thick and above and below it 
is lime shale, carrying small gold content. Development along 
the vertical discloses its continuity for over 300 ft. Should 
this vertical be found to extend downward to the basal Cam- 
brian quartzlte, it is quite probable, judging from experience 
in other districts, that a considerable body of ore may be 
found. 

To provide further funds for the exploration of the ore- 
body, a corporation with a capitalization of 500.000 shares 
of a par value of 25c. each has been organized. Of the capital 
one-half, or 250,000 shares, wag issued in payment for the 
property, and the balance placed in the treasury. Of the 
property purchase stock, one-half, or 125,000 shares, was issued 
to the original owners, and the other 125,000 shares equally 
divided among the subscribers to the development fund, so that 
each man who paid in $100 will receive 2500 shares of stock. 
Officers of the Heidelberg Mining Co., the name selected for the 
corporation, are: Geo. V. Ayres, president; John Treber, vice- 
president; J. Goldberg, treasurer; and W. L. Treber, secretary. 
The directors are: N. E. Franklin, president First National 
Bank: D. A. McPherson, cashier First National Bank; Geo. 
V. Ayres. hardware merchant; J. Goldberg, grocer; N. J. 
Thompsen, lumber dealer; A. T. Roos, superintendent of prop- 
erty, and John Treber. wholesaler. 

For several weeks, steel for the new hoist house and head- 
frame at the B. & M. shaft of the Homestake company, has been 
arriving, and shortly the first consignment of machinery is 
expected to be delivered. Foundation work is well in hand. 
It is of massive construction, in some places the cement, rein- 
forced with railroad iron bolted into the solid rock, steel cables 
and other steel materials, will be over 20 ft. thick. The new 
hoisting engine is of the compound-condensing type, built by 
the Nordberg firm, and is one of the largest hoisting engines 
ever constructed. The machine, after its completion, was 
erected in the Nordberg shops, and has been dismantled for 
shipment to Lead. Tt in equipped with two clutched reels to 
carry rial rope "•* by 7 In. It is designed to handle 12,000 lb. 
of ore from a depth of 3200 ft., using skips in balance. It has 
a gross weight of over 1,000,000 lb., and will require 24 freight 
cars to deliver it in Lead. Steam to operate it will be secured 
from a boiler plant close to the C. & N. W. tracks. This plant 
will also furnish steam for an electric generating station. 
Foundation work on the boiler plant is progressing rapidly, 
and it is planned to have the new hoist in full operation by 
the end of the present year. 

By the purchase of the Hidden Fortune 40-stamp mill, the 
Golden Reward company will be enabled to increase its mill- 
ing capacity to 400 tons per day. The purchase was made 
from the Homestake Mining Co., which came into possession 
of the mill a year ago, when it took over the Hidden Fortune 
property. The Homestake removed some equipment from the 
plant, but the bulk of it passes to the Golden Reward. In the 
mill was installed a full complement of cyanide tanks, piping, 
crushers, and considerable miscellaneous material. The build- 
ing was well constructed, and contains a large amount of lum- 
ber which will be used. The Golden Reward company has 
already started to remove the plant to its millsite in Dead- 
wood. With this addition to the capacity of its milling facili- 
ties, the Golden Reward will rank next to the Homestake as a 
gold producer in the Black Hills. Numerous improvements in 
the plant are under way, including a tube-mill, Trent replacing 
tank, classifiers, etc., so that even better work will be done in 
the future. 

At the Trojan a small streak of sylvanite ore was recently 
discovered that gave high assays in gold. Roasted specimens 
were as fine as the best Cripple Creek ever produced. The 
Company's mill is steadily operating on a good grade of ma- 
teria 1 , and shipments are regularfy going forward to sDieltTS. 
The Company is in an excellent position financially. It is a 
close corporation, and does not publish statements of its earn- 
ings, but they are known to be good. 



JOHANNESBURG, TEAXSVAAL 

Barnato. Albv. axd Consolidated Mines Selection Groups 
of Mines. — The Far East Rand. — Diamond Mining in 
Soltii Afbica. 

The feature of the first week in June here has been the 
large number of company meetings held. The companies con- 
trolled by the house of Barnato were particularly prominent, 
as this is tke only group able to report substantial progress 
during the year. The reason for this may be found in the 
fact that until a few years ago this was the most backward 
of any mining group on the Rand, its properties were be- 
coming almost derelict and the most antiquated in equip- 
ment. A few years ago, a change in the policy of this group 
was made, the Modderfontein Government Areas were secured, 
the Langlaagte properties were taken in hand, and some at- 
tempt made to bring the other mines more up to the mining 
practice of the Rand. The result now is that after the Eck- 
stein group, the Barnato is one of the leading mining con- 
cerns on the Rand, and with the exception of their oldest 
mines, can compare in a satisfactory manner with those of 
any other group. There is, for instance, the Van Ryn Deep 
mine, which made a working profit of £105.022 during 1913, 
the working costs averaging practically $4. SO per ton. Much 
better results may be looked for during the current year, as 
working costs are declining and the gold recovery likely to 
go up to $8.40 per ton. Nearly 2,000,000 tons of profitable 
ore is developed in the mine, giving an average value by 
assay of $8.6S per ton. The Consolidated Langlaagte is an- 
other Barnato mine, which during the year has done excep- 
tionally well. Working costs have been reduced 24c. per ton, 
while the profitable ore reserves are estimated at 2,194,408 
tons worth $7.40 per ton. Like the Van Ryn Deep, this is 
another Barnato mine likely to yield even better results this 
year. The Government Gold Mining Areas at Modderfontein 
are also improving in the matter of development, ore re- 
serves at present being about 1,250,000 tons averaging $6.35 
per ton. It is to these three mines that the Barnato house 
is looking for most of the improvement in the immediate 
future, and no doubt they will more than make up for any 
marked decline the older mines of the group will show for 
some time to come. 

The Albu group of mining companies also held their annual 
meetings during the week. The most promising of these is 
the Meyer & Charlton, which at the present time has the 
highest recovery value of any mine on the Rand, while work- 
ing costs are being reduced. Several of the mines in this 
group continue somewhat under a cloud, notably Cinderella 
Consolidated, New Goch, and the Rand Collieries, and it looks 
as though some time will elapse before the necessary capital 
will be obtained for such undertakings as Cinderella Con- 
solidated, Steyn Estates, and West Rand 'Consolidated. 

The Consolidated Mines Selection group has also held 
meetings during the week, without, however, having anything 
particularly cheerful to report. Brakpan, the principal mine 
of the group, did worse than usual during the year, develop- 
ment assays falling away considerably; but during the first 
few months of the year quite one-half of the ore developed 
has proved unprofitable. The Springs mine seems to be open- 
ing fairly well, but the ore here is somewhat erratic. A fair 
proportion of the ore developed proved unprofitable, but there 
seems every probability of the mine falling little short of 
the Brakpan, underground conditions being somewhat similar 
on both properties. The Springs mine is situated nearly in 
the centre of the Far East part of the Rand, which is ex- 
pected to do much to restore its prosperity, and to enable 
the Rand to again report progressive gold outputs. When. 
however, the Daggafontein. sinking about six miles farther 
east, rraehes the reef, about the end of the year, the true 
value and prospects of the Far East Rand will be better known. 



18, !''ll 



MINING AND m UN HI It I'KI SS 



II I 



mining in South Attica ha» recenllj iu 
lax lion, sopeclall] 

thf ili" I in [iion.ir* in Qertnan Africa. At 

unond Bines t| Klmberley had practically 

ttir »! worlds diamond markets at their nierv) , bill 

recent discoveries of dlamnud mines In other i.irr, ol South 




map BB0W13G DISTHIBI iiiix 01 DIAMONDS l\ BOUTB Mini A. 

Africa have put quite a different complexion on the diamond 
mining Industry. The Transvaal, with its Premier mine near 
Pretoria, can now boast of possessing one of the largest and 
most Important diamond producers in the world, while the 
increasing production of alluvial diamonds in Africa has 
somewhat complicated the markets. So great has the diamond 
production of Africa become, that a conference was to be held 
in London during June, as mentioned In this journal of June 6. 
During May. Rand mines treated 2,196,287 tons of ore averag- 
ing $6.30 per ton. the lowest average in the last twelve months. 
Working costs were $4. OS per ton, which was equalled in Janu- 
ary. 191". Total profit for the month of May was n.ull.968. 

J0PL1N, MISSOURI 

Sum (mi National Geologists Co-opehati in Bxpebimextal 
Wiikk. — Minim. Obes PEOM Si hi kCE DOWH. — NOTES OS mi 
Distbk t'a Mixes. 

H. A. Buehler. state geologist of Missouri. C. A. Wright, 
connected with the D. S. Bureau of Mines, and other geol- 
ogists and mining engineers who are connected with both 
the state and federal departments of mining and geology, 
have established headquarters in Joplin. and a campaign of 
experimental work which will cover many months is being 
planned. Flotation processes will be tried out. this feature 
of the work being considered of much importance in view 
of the fact that the recovery of zincblende has never been 
what would be considered thorough, and therefore anything 
that will tend to bring about a more perfect recovery will 
be heralded as a great boon to the local industry. The study 
of the geology of the district, the character of the ores, the 
details of mining and milling, will be given due consideration, 
and interesting reports on the work thus undertaken will be 
looked for with much enthusiasm by local operators and others 
interested in the district. The oil flotation process has been 
tried at only one place in the district, namely, at the prop- 
erty of the Underwriters Land Co.. west of Joplin. where 



bj Hays * rMUll 

nt the . x|.. t tun in i„ .,,, ,| lr 

PrtsrWa ml indled. 

Modern pumping equipment in in draining the 

Bm b inn, In the northwest part of Joplin, where 

old types »f pmii|ii railed, ai art an "■>* 

belting Into ground thai baa been under water for many 
ran going fsi bakra the old let 

■hallow dereloi ni ol Importance is balm 

ducted, »nrk at one or two iiiintn being dona from th 

town In the form of strip pits. This shallow work Is 

being dona where the ore is found within four or ti % • 

of the surface. Plans for the construction of a mill to handle 
the shallow ore. and also to do custom milling from other 

mines on the lens... are being co